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Aono M, Ushio S, Araki Y, Ueno R, Iwano S, Takaoka A, Tomata Y. Japanese Diet Indices and Nutrient Density in US Adults: A Cross-Sectional Analysis with NHANES Data. Nutrients 2024; 16:2431. [PMID: 39125312 PMCID: PMC11314486 DOI: 10.3390/nu16152431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 07/20/2024] [Accepted: 07/24/2024] [Indexed: 08/12/2024] Open
Abstract
BACKGROUND Previous studies have shown that Japanese dietary patterns are associated with high nutrient density. However, these studies were limited to the Japanese population. We examined this association in the US population. METHODS A cross-sectional analysis was conducted using data from the National Health and Nutrition Examination Survey (NHANES) 2017-2018. We included 3138 people aged 20-79 years. Food and nutrient intake data were based on the 24 h recall method. Three Japanese diet indices were used: (1) Japanese Diet Index (JDI, based on 9 food items), (2) modified JDI (mJDI, based on 12 food items), and (3) weighted JDI (wJDI, selected and weighted from mJDI food items). The nutrient density (ND) score was calculated based on the Nutrient-Rich Food Index 9.3. Spearman's rank correlation coefficients were calculated. RESULTS The correlation coefficients with the ND score were 0.24 (p < 0.001) for the JDI and 0.38 (p < 0.001) for the mJDI. The correlation coefficient between the wJDI and ND score was 0.48 (p < 0.001). The three Japanese diet indices were correlated with the ND score in all racial groups (p < 0.001). CONCLUSIONS Even among the US population, higher degrees of Japanese diet defined by the JDI or mJDI were associated with higher nutrient density.
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Affiliation(s)
| | | | | | | | | | | | - Yasutake Tomata
- School of Nutrition and Dietetics, Faculty of Health and Social Services, Kanagawa University of Human Services, 1-10-1, Heisei-cho, Yokosuka 238-8522, Japan
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Imai T, Miyamoto K, Sezaki A, Kawase F, Shirai Y, Abe C, Sanada M, Inden A, Sugihara N, Honda T, Sumikama Y, Nosaka S, Shimokata H. Traditional japanese diet score and the sustainable development goals by a global comparative ecological study. Nutr J 2024; 23:38. [PMID: 38509554 PMCID: PMC10956220 DOI: 10.1186/s12937-024-00936-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/28/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Reducing the environmental impact of the food supply is important for achieving Sustainable Development Goals (SDGs) worldwide. Previously, we developed the Traditional Japanese Diet Score (TJDS) and reported in a global ecological study that the Japanese diet is associated with reducing obesity and extending healthy life expectancy etc. We then examined the relationship between the TJDS and environmental indicators. METHODS The average food (g/day/capita) and energy supplies (kcal/day/capita) by country were obtained from the Food and Agriculture Organization of the United Nations Statistics Division database. The TJDS was calculated from eight food groups (beneficial food components in the Japanese diet: rice, fish, soybeans, vegetables, and eggs; food components that are relatively unused in the traditional Japanese diet: wheat, milk, and red meat) by country using tertiles, and calculated the total score from - 8 to 8, with higher scores meaning greater adherence to the TJDS. We used Land Use (m2), Greenhouse gas (GHG) emissions 2007/2013 (kg CO2eq), Acidifying emissions (g SO2eq), Eutrophying emissions (g PO43- eq), Freshwater (L), and water use (L) per food weight by Poore et al. as the environmental indicators and multiplied these indicators by each country's average food supply. We evaluated the cross-sectional and longitudinal associations between the TJDS and environmental indicators from 2010 to 2020. This study included 151 countries with populations ≥ 1 million. RESULTS Land use (β ± standard error; -0.623 ± 0.161, p < 0.001), GHG 2007 (-0.149 ± 0.057, p < 0.05), GHG 2013 (-0.183 ± 0.066, p < 0.01), Acidifying (-1.111 ± 0.369, p < 0.01), and Water use (-405.903 ± 101.416, p < 0.001) were negatively associated with TJDS, and Freshwater (45.116 ± 7.866, p < 0.001) was positively associated with TJDS after controlling for energy supply and latitude in 2010. In the longitudinal analysis, Land Use (β ± standard error; -0.116 ± 0.027, p < 0.001), GHG 2007 (-0.040 ± 0.010, p < 0.001), GHG 2013 (-0.048 ± 0.011, p < 0.001), Acidifying (-0.280 ± 0.064, p < 0.001), Eutrophying (-0.132 ± 0.062, p < 0.05), and Water use (-118.246 ± 22.826, p < 0.001) were negatively associated with TJDS after controlling for confounders. CONCLUSIONS This ecological study suggests that the traditional Japanese dietary pattern might improve SDGs except Fresh water.
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Affiliation(s)
- Tomoko Imai
- Department of Food Science and Nutrition, Doshisha Women's College of Liberal Arts, Kyoto, Japan.
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan.
| | - Keiko Miyamoto
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Department of Nursing, Nagoya University of Arts and Sciences, Aichi, Japan
| | - Ayako Sezaki
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- National Cancer Center Japan, Tokyo, Japan
| | - Fumiya Kawase
- Department of Nutrition, Asuke Hospital Aichi Prefectural Welfare Federation of Agricultural Cooperatives, Aichi, Japan
- Graduate School of Nutritional Science, Nagoya University of Arts and Sciences, Aichi, Japan
| | - Yoshiro Shirai
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Persuasive Technology Group, Life Science Laboratories, KDDI Research, Inc, Fujimino, Japan
| | - Chisato Abe
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Department of Food and Nutrition, Tsu City College, Mie, Japan
| | - Masayo Sanada
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Department of Nursing, Heisei College of Health Sciences, Gifu, Japan
| | - Ayaka Inden
- Clinical Nutrition Unit, Hamamatsu University Hospital, Shizuoka, Japan
| | - Norie Sugihara
- Faculty of Health and Social Services, Kanagawa University of Human Services, Kanagawa, Japan
| | - Toshie Honda
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Department of Nursing, Nagoya University of Arts and Sciences, Aichi, Japan
| | - Yuta Sumikama
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Department of Nutrition, Japanese Red Cross Aichi Medical Center Nagoya Daiichi Hospital, Aichi, Japan
| | - Saya Nosaka
- Department of Food Science and Nutrition, Doshisha Women's College of Liberal Arts, Kyoto, Japan
| | - Hiroshi Shimokata
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, Aichi, Japan
- Graduate School of Nutritional Science, Nagoya University of Arts and Sciences, Aichi, Japan
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Sato S, Chinda D, Iino C, Sawada K, Mikami T, Nakaji S, Sakuraba H, Fukuda S. A Cohort Study of the Influence of the 12-Component Modified Japanese Diet Index on Oral and Gut Microbiota in the Japanese General Population. Nutrients 2024; 16:524. [PMID: 38398848 PMCID: PMC10893011 DOI: 10.3390/nu16040524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 01/31/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
The Japanese diet is a healthy dietary pattern, and the oral or gut microbiota have been identified as the main factors underlying the beneficial effects of the Japanese diet. However, epidemiological studies on Japanese dietary patterns calculated from daily eating habits in the general population yielded inconsistent findings. This study aimed to determine the association between the 12-component modified Japanese Diet Index (mJDI12) and the oral and gut microbiota in the general population of a rural area in Japan. After propensity-score matching, 396 participants (198 each in the low and high mJDI12 groups) were picked out. One year after the follow up survey, we reclassified the subjects and compared the low and high mJDI12 groups again. Participants with a high mJDI12 had a higher relative abundance of butyric acid-producing bacteria in their gut microbiota. Moreover, the significantly higher dietary fiber intake in the high mJDI12 group suggested that the high intake of dietary fiber contributed to an increase in butyric acid-producing bacteria in the gut. In contrast, in individuals with a high mJDI12, only Allpprevotella was decreased in the oral microbiota. Thus, the Japanese dietary pattern can have beneficial effects by improving the oral and gut microbiota.
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Affiliation(s)
- Satoshi Sato
- Department of Gastroenterology and Hematology, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.S.); (C.I.); (H.S.); (S.F.)
| | - Daisuke Chinda
- Division of Endoscopy, Hirosaki University Hospital, Hirosaki 036-8562, Japan
| | - Chikara Iino
- Department of Gastroenterology and Hematology, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.S.); (C.I.); (H.S.); (S.F.)
| | - Kaori Sawada
- Center of Healthy Aging Innovation, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (K.S.); (T.M.); (S.N.)
| | - Tatsuya Mikami
- Center of Healthy Aging Innovation, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (K.S.); (T.M.); (S.N.)
| | - Shigeyuki Nakaji
- Center of Healthy Aging Innovation, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (K.S.); (T.M.); (S.N.)
| | - Hirotake Sakuraba
- Department of Gastroenterology and Hematology, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.S.); (C.I.); (H.S.); (S.F.)
| | - Shinsaku Fukuda
- Department of Gastroenterology and Hematology, Graduate School of Medicine, Hirosaki University, Hirosaki 036-8562, Japan; (S.S.); (C.I.); (H.S.); (S.F.)
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Tang J, Dong JY, Eshak ES, Cui R, Shirai K, Liu K, Tamakoshi A, Iso H. Breakfast Type and Cardiovascular Mortality: The Japan Collaborative Cohort Study. J Atheroscler Thromb 2023; 30:1255-1264. [PMID: 36543187 PMCID: PMC10499662 DOI: 10.5551/jat.63564] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 11/14/2022] [Indexed: 09/05/2023] Open
Abstract
AIM Little is known regarding the association between breakfast type and cardiovascular mortality. We examined the associations between breakfast type and risks of mortality from stroke, coronary heart disease (CHD), and total cardiovascular disease (CVD). METHODS A total of 85,319 males and females aged 40 to 79 years who were free from CVD and cancers at baseline were involved in this study. The participants were divided into five groups according to their self-reported breakfast types: Japanese breakfast, Western breakfast, mixed Japanese-Western breakfast, other breakfast, and skipping breakfast groups. All hazard ratios (HRs) were estimated using Cox proportional hazards regression models after adjusting for the potential confounding factors. RESULTS During the median 19-year follow-up, we identified CVD deaths of 5,870 subjects. Compared to the Japanese breakfast, the multivariable HRs (95% CIs) of total CVD were 0.64 (0.52-0.79) for mixed Japanese-Western breakfast, 0.90 (0.77-1.04) for Western breakfast, 1.24 (0.95-1.61) for other breakfast, and 1.31 (1.00-1.71) for skipping breakfast. The corresponding HRs (95% CIs) of total stroke were 0.67 (0.49-0.91), 0.83 (0.66-1.05), 1.15 (0.76-1.74), and 1.25 (0.82-1.92), and those of CHD were 0.73 (0.48-1.12), 1.08 (0.81-1.44), 1.09 (0.60-1.98), and 1.77 (1.11-2.83). CONCLUSION Compared to Japanese breakfast, mixed Japanese-Western breakfast may have a protective role in cardiovascular mortality whereas skipping breakfast may harm cardiovascular health.
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Affiliation(s)
- Jingyun Tang
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Jia-Yi Dong
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Ehab S. Eshak
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
- Department of Public Health and Preventive Medicine, Faculty of Medicine, Minia University, Minia, Egypt
| | - Renzhe Cui
- Department of Internal Medicine, Okanami General Hospital, Mie, Japan
| | - Kokoro Shirai
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Keyang Liu
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Akiko Tamakoshi
- Department of Public Health, Graduate School of Medicine, Hokkaido University, Japan, Sapporo, Japan
| | - Hiroyasu Iso
- Public Health, Department of Social Medicine, Graduate School of Medicine, Osaka University, Osaka, Japan
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Miyake H, Kashino I, Nanri A, Mizoue T. Development of the Scores for Traditional and Modified Japanese Diets. Nutrients 2023; 15:3146. [PMID: 37513565 PMCID: PMC10386055 DOI: 10.3390/nu15143146] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 07/07/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Increasing attention is being paid to the role of diet quality in the prevention and management of non-communicable diseases. We developed a scoring system for the traditional Japanese diet and its modified version considering the dietary culture in Japan, dietary guidelines for the Japanese, and updated evidence for disease prevention. The traditional Japanese diet comprises white rice, miso soup, soybean products, vegetables, mushrooms, seaweeds, fish and shellfish, high-sodium foods, and green tea. In the modified Japanese diet, unprocessed or minimally refined rice and raw vegetables, milk and dairy products, and fruits were additionally considered, while salty food was reverse-scored. The cutoff for the intake frequency of each food/food group was determined with reference to a health survey of >12,000 workers. Among the participants in the validation study, we confirmed the nutritional gradient with increasing scores in the expected direction. The scores were closely correlated with the respondents' backgrounds, including occupational factors. This simple scoring system can be used for diet quality assessments and epidemiological research.
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Affiliation(s)
- Haruka Miyake
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8955, Japan (T.M.)
| | - Ikuko Kashino
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8955, Japan (T.M.)
- Section of Research of Collaboration and Partnership, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka 566-0002, Japan
| | - Akiko Nanri
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8955, Japan (T.M.)
- Department of Food and Health Sciences, International College of Arts and Sciences, Fukuoka Women’s University, Fukuoka 813-8529, Japan
| | - Tetsuya Mizoue
- Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo 162-8955, Japan (T.M.)
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6
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Oono F, Murakami K, Fujiwara A, Shinozaki N, Adachi R, Asakura K, Masayasu S, Sasaki S. Development of a Diet Quality Score for Japanese and Comparison With Existing Diet Quality Scores Regarding Inadequacy of Nutrient Intake. J Nutr 2023; 153:798-810. [PMID: 36931752 DOI: 10.1016/j.tjnut.2022.11.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 10/21/2022] [Accepted: 11/18/2022] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Few studies have explored optimal diet quality scores in Japan. OBJECTIVES We developed a Diet Quality Score for Japanese (DQSJ) and examined the associations of DQSJ and existing diet quality scores with inadequacy of nutrient intake in Japanese adults. METHODS Candidate components of the DQSJ were extracted from well-established diet quality scores: Healthy Eating Index-2015 (HEI-2015), Alternate Healthy Eating Index-2010 (AHEI-2010), Alternate Mediterranean Diet score (AMED), and Dietary Approaches to Stop Hypertension (DASH). From candidates, we selected the components of the DQSJ, considering potential health effects of the components (from the Global Burden of Disease Study) and dietary intake in Japan. The DQSJ included 10 components: fruits, vegetables, whole grain, dairy, nuts, legumes, fish, red and processed meat, sugar-sweetened beverages, and sodium. We calculated the DQSJ, HEI-2015, AHEI-2010, AMED, DASH, and Japanese Food Guide Spinning Top score (JFGST) based on 4-d dietary records of 392 Japanese aged 20-69 y. Inadequate intakes of 21 nutrients were assessed using the DRIs for Japanese. Logistic regression was used to examine the prevalence of inadequate nutrient intake according to quartiles of the scores. RESULTS All examined scores except the JFGST were moderately to strongly correlated with each other (Spearman correlation coefficients: 0.52-0.84). They were inversely associated with the prevalence of inadequate intake of most nutrients (n = 16 for DQSJ and HEI-2015, n = 13 for AHEI-2010 and DASH, n = 17 for AMED, compared with n = 4 for JFGST). AMED was also positively associated with the prevalence of inadequate sodium intake, whereas no such associations were observed for the other scores. CONCLUSIONS Similar to HEI-2015, AHEI-2010, and DASH, the DQSJ was generally associated with the low prevalence of inadequate intake of most nutrients in Japanese adults. Further evaluations against biomarkers and health outcomes are warranted.
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Affiliation(s)
- Fumi Oono
- Department of Social and Preventive Epidemiology, Division of Health Sciences and Nursing, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan
| | - Kentaro Murakami
- Department of Social and Preventive Epidemiology, School of Public Health, the University of Tokyo, Tokyo, Japan.
| | - Aya Fujiwara
- Department of Social and Preventive Epidemiology, School of Public Health, the University of Tokyo, Tokyo, Japan; Department of Epidemiology and Prevention, Center for Clinical Sciences, National Center for Global Health and Medicine, Tokyo, Japan; Department of Nutritional Epidemiology and Shokuiku, National Institute of Biomedical Innovation, Health and Nutrition, Tokyo, Japan
| | - Nana Shinozaki
- Department of Social and Preventive Epidemiology, School of Public Health, the University of Tokyo, Tokyo, Japan
| | - Riho Adachi
- Department of Social and Preventive Epidemiology, School of Public Health, the University of Tokyo, Tokyo, Japan
| | - Keiko Asakura
- Department of Environmental and Occupational Health, School of Medicine, Toho University, Tokyo, Japan
| | | | - Satoshi Sasaki
- Department of Social and Preventive Epidemiology, Division of Health Sciences and Nursing, Graduate School of Medicine, the University of Tokyo, Tokyo, Japan; Department of Social and Preventive Epidemiology, School of Public Health, the University of Tokyo, Tokyo, Japan.
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Matsumoto Y, Fujii H, Harima M, Okamura H, Yukawa-Muto Y, Odagiri N, Motoyama H, Kotani K, Kozuka R, Kawamura E, Hagihara A, Uchida-Kobayashi S, Enomoto M, Yasui Y, Habu D, Kawada N. Severity of Liver Fibrosis Is Associated with the Japanese Diet Pattern and Skeletal Muscle Mass in Patients with Nonalcoholic Fatty Liver Disease. Nutrients 2023; 15:nu15051175. [PMID: 36904174 PMCID: PMC10005291 DOI: 10.3390/nu15051175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/20/2023] [Accepted: 02/24/2023] [Indexed: 03/02/2023] Open
Abstract
It is not fully clear as to which dietary patterns are associated with the pathogenesis of nonalcoholic fatty liver disease (NAFLD) in Asia. We conducted a cross-sectional study of 136 consecutively recruited patients with NAFLD (49% female, median age 60 years). Severity of liver fibrosis was assessed using the Agile 3+ score, a recently proposed system based on vibration-controlled transient elastography. Dietary status was assessed using the 12-component modified Japanese diet pattern index (mJDI12). Skeletal muscle mass was assessed by bioelectrical impedance. Factors associated with intermediate-high-risk Agile 3+ scores and skeletal muscle mass (75th percentile or higher) were analyzed by multivariable logistic regression. After adjustment for confounders, such as age and sex, the mJDI12 (OR: 0.77; 95% CI: 0.61, 0.99) and skeletal muscle mass (75th percentile or higher) (OR: 0.23; 95% CI: 0.07, 0.77) were significantly associated with intermediate-high-risk Agile 3+ scores. Soybeans and soybean foods were significantly associated with skeletal muscle mass (75th percentile or higher) (OR: 1.02; 95% CI: 1.00, 1.04). In conclusion, the Japanese diet pattern was associated with the severity of liver fibrosis in Japanese patients with NAFLD. Skeletal muscle mass was also associated with the severity of liver fibrosis, and intake of soybeans and soybean foods.
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Affiliation(s)
- Yoshinari Matsumoto
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, 3-7-30 Habikino, Habikino-shi, Osaka 583-8555, Japan
| | - Hideki Fujii
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
- Correspondence: ; Tel.: +81-6-6645-3905
| | - Mika Harima
- Nutrition Department, Osaka Metropolitan University Hospital, 1-5-7 Asahimachi, Abeno-ku, Osaka 545-8586, Japan
| | - Haruna Okamura
- Nutrition Department, Osaka Metropolitan University Hospital, 1-5-7 Asahimachi, Abeno-ku, Osaka 545-8586, Japan
| | - Yoshimi Yukawa-Muto
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Naoshi Odagiri
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Hiroyuki Motoyama
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Kohei Kotani
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Ritsuzo Kozuka
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Etsushi Kawamura
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Atsushi Hagihara
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Sawako Uchida-Kobayashi
- Department of Premier Preventive Medicine, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abenoku, Osaka 545-8585, Japan
| | - Masaru Enomoto
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
| | - Yoko Yasui
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, 3-7-30 Habikino, Habikino-shi, Osaka 583-8555, Japan
| | - Daiki Habu
- Department of Nutrition, Graduate School of Human Life and Ecology, Osaka Metropolitan University, 3-7-30 Habikino, Habikino-shi, Osaka 583-8555, Japan
| | - Norifumi Kawada
- Department of Hepatology, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan
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8
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Zhang S, Otsuka R, Nishita Y, Tange C, Tomida M, Ando F, Shimokata H, Arai H. Twenty-year prospective cohort study of the association between a Japanese dietary pattern and incident dementia: the NILS-LSA project. Eur J Nutr 2023; 62:1719-1729. [PMID: 36808562 DOI: 10.1007/s00394-023-03107-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/31/2023] [Indexed: 02/19/2023]
Abstract
PURPOSE Evidence has suggested that adherence to a Japanese diet may be beneficial for health. However, its association with incident dementia remains unclear. The aim was to explore this association in older Japanese community-dwellers, taking apoprotein E genotype into consideration. METHODS A 20-year follow-up cohort study involving 1504 dementia-free older Japanese community-dwellers (aged 65-82 years) living in Aichi Prefecture, Japan, was conducted. Based on a previous study, a 9-component-weighted Japanese Diet Index (wJDI9) score (range - 1 to 12) was calculated using 3-day dietary record data and used as an indicator of adherence to a Japanese diet. Incident dementia was confirmed by the Long-term Care Insurance System certificate, and dementia events occurring within the first 5 years of follow-up were excluded. A multivariate-adjusted Cox proportional hazards model was used to calculate hazard ratios (HRs) and 95% confidence intervals (CIs) for incident dementia, and Laplace regression was used to estimate percentile differences (PDs) and 95% CIs (expressed in months) in age at incident dementia (i.e., dementia-free duration differences), according to tertiles (T1-T3) of wJDI9 scores. RESULTS The median (IQR) follow-up duration was 11.4 (7.8-15.1) years. During the follow-up period, 225 (15.0%) cases of incident dementia were identified. Because the smallest prevalence of incident dementia was 10.7% for the T3 group of wJDI9 scores, to avoid inaccurately estimating the dementia-free duration of participants in the T3 group, the 11th PDs in age at incident dementia between the T1 and T3 groups of wJDI9 scores were estimated. A higher wJDI9 score was associated with a lower risk of incident dementia and a longer dementia-free duration difference. The multivariate-adjusted HR (95% CI) and 11th PDs (95% CI) in age at incident dementia for participants in the T1 vs. T3 group were 1.00 (reference) vs. 0.58 (0.40, 0.86), and 0 (reference) vs. 36.7 (9.9, 63.4) months, respectively. Each 1-point increase of the wJDI9 score was associated with a 5% lower risk of incident dementia (P value = 0.033) and 3.9 (0.3, 7.6) additional months of dementia-free duration (P value = 0.035). No differences were seen in sex or smoking status (current smoker vs. non-current smoker) at baseline. CONCLUSION These findings suggest that adherence to a Japanese diet defined by wJDI9 is associated with a lower risk of incident dementia in older Japanese community-dwellers, suggesting the benefit of the Japanese diet for dementia prevention.
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Affiliation(s)
- Shu Zhang
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan
| | - Rei Otsuka
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan.
| | - Yukiko Nishita
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan
| | - Chikako Tange
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan
| | - Makiko Tomida
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan
| | - Fujiko Ando
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan.,Faculty of Health and Medical Sciences, Aichi Shukutoku University, Aichi, Japan
| | - Hiroshi Shimokata
- Department of Epidemiology of Aging, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology, 7-430 Morioka-cho, Obu, Aichi, 474-8511, Japan.,Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, Aichi, Japan
| | - Hidenori Arai
- National Center for Geriatrics and Gerontology, Aichi, Japan
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9
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Shvabskaia OB, Karamnova NS, Izmailova OV, Drapkina OM. Healthy Eating in Population Models of Nutrition: Asian Diet Style Summary. RATIONAL PHARMACOTHERAPY IN CARDIOLOGY 2023. [DOI: 10.20996/1819-6446-2022-12-08] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The population of Japan and Okinawa is known for the longest life expectancy, which many researchers rightly associate with the nature of nutrition existing in these territories. The Japanese diet and Okinawan diet, along with other traditional diets, are real examples of historically established sustainable patterns of healthy eating. Asian eating styles have marked differences from European eating patterns, not only in differences in food sources, but also in eating habits. The article presents the historical, climatic and cultural features of these diets; the issues of food composition, energy and nutritional value of these models of nutrition are considered in detail with an analysis of the differences existing between them; highlights the benefits of products grown mainly in Japan, which are ration-forming for the population of this country; as well as the results of scientific studies on the protective effect of the Japanese and Okinawan diets on human health and disease prevention.
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Affiliation(s)
- O. B. Shvabskaia
- National Medical Research Center for Therapy and Preventive Medicine
| | - N. S. Karamnova
- National Medical Research Center for Therapy and Preventive Medicine
| | - O. V. Izmailova
- National Medical Research Center for Therapy and Preventive Medicine
| | - O. M. Drapkina
- National Medical Research Center for Therapy and Preventive Medicine
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10
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Takabayashi S, Okada E, Hirata T, Takimoto H, Nakamura M, Sasaki S, Takahashi K, Nakamura K, Ukawa S, Tamakoshi A. Nutritional Adequacy Assessment of the Japanese Diet Using the Number of Dishes Compared to Existing Dietary Diversity Indices: A Cross-Sectional Analysis from the 2012 National Health and Nutrition Survey, Japan. J Nutr Sci Vitaminol (Tokyo) 2023; 69:197-205. [PMID: 37394425 DOI: 10.3177/jnsv.69.197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
The Japanese diet has attracted attention as a factor contributing to the Japanese population's longevity. A typical Japanese meal, traditionally called "ichiju-sansai," is composed of various dishes. This study assessed the nutritional adequacy of the Japanese diet using the number of dishes in all meals (NDAM) compared to existing dietary diversity indices (DDIs). This cross-sectional study used data from the 2012 National Health and Nutrition Survey. A total of 25,976 participants aged ≥20 y were included in this study. NDAM was calculated for whole dishes or single foods (except supplements and beverages) from one-day weighted dietary records. The food variety score (FVS), number of foods, dietary diversity score (DDS), and number of food groups are some of the existing DDIs. NDAM had relatively high positive correlation coefficients with potassium, magnesium, and dietary fiber. The partial correlation coefficients with an indicator of the overall nutrient adequacy of NDAM was 0.42 for men and 0.42 for women. It was almost the same as that of the FVS (men: 0.44, women: 0.42) and DDS (men: 0.44, women: 0.43). On the other hand, NDAM, similar to existing DDIs, was also positively correlated with nutrient restriction in both sexes. These findings indicate that the nutrient adequacy of NDAM is similar to that of the existing DDIs. Because of the higher sodium intake and cholesterol intake in higher NDAM and existing DDIs, the effect of higher NDAM on health outcomes must be investigated in future studies.
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Affiliation(s)
- Saeka Takabayashi
- Department of Public Health, Graduate School of Medicine, Hokkaido University
| | - Emiko Okada
- Department of Nutritional Epidemiology and Nutrition Education, National Institute of Health and Nutrition
| | - Takumi Hirata
- Institute for Clinical and Translational Science, Nara Medical University
| | - Hidemi Takimoto
- Department of Nutritional Epidemiology and Nutrition Education, National Institute of Health and Nutrition
| | - Mieko Nakamura
- Department of Community Health and Preventive Medicine, Hamamatsu University School of Medicine
| | - Satoshi Sasaki
- Department of Social and Preventive Epidemiology, School of Public Health, Graduate School of Medicine, The University of Tokyo
| | - Kunihiko Takahashi
- Department of Biostatistics, Medical and Dental Data Science Center, Tokyo Medical and Dental University
| | - Koshi Nakamura
- Department of Public Health and Hygiene, Graduate School of Medicine, University of the Ryukyus
| | - Shigekazu Ukawa
- Graduate School of Human Life and Ecology, Osaka Metropolitan University
| | - Akiko Tamakoshi
- Department of Public Health, Hokkaido University Faculty of Medicine
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11
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Shimizu A, Okada K, Tomata Y, Uno C, Kawase F, Momosaki R. Association of Japanese and Mediterranean Dietary Patterns with Muscle Weakness in Japanese Community-Dwelling Middle-Aged and Older Adults: Post Hoc Cross-Sectional Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12636. [PMID: 36231936 PMCID: PMC9566278 DOI: 10.3390/ijerph191912636] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/26/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
The association of Japanese and Mediterranean dietary patterns with muscle weakness in middle-aged and older Japanese individuals is unclear. This cross-sectional study investigated the association between Japanese and Mediterranean dietary patterns and muscle weakness in community-dwelling, middle-aged, and older Japanese individuals (enrolled from 2007 to 2011). Based on the dietary consumption information obtained from the brief self-administered diet history questionnaire, we assessed adherence to the Japanese (12-component revised Japanese diet index (rJDI12)) and Mediterranean (alternate Mediterranean diet (aMed) score) dietary patterns. Muscle weakness was defined as handgrip strength <28 and <18 kg for men and women, respectively. Logistic regression was used to ascertain the relationship between dietary pattern and muscle weakness. In our study, with 6031 participants, the Japanese, but not Mediterranean, dietary pattern was inversely associated with muscle weakness (p for trend = 0.031 and 0.242, respectively). In the model adjusted for confounders, including energy intake, the highest quartile of rJDI12 scores (9-12 points), and the rJDI12 scores, entered as continuous variables, showed an independent association (odds ratio (95% CI), 0.703 (0.507-0.974), and 0.933 (0.891-0.977), respectively). Our findings showed that adherence to the Japanese dietary pattern is associated with a low prevalence of muscle weakness.
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Affiliation(s)
- Akio Shimizu
- Department of Health Science, Faculty of Health and Human Development, The University of Nagano, 8-49-7, Miwa, Nagano 380-8525, Japan
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, 57, Iwasaki-cho, Nisshin 470-0131, Japan
| | - Kiwako Okada
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, 57, Iwasaki-cho, Nisshin 470-0131, Japan
- Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, 57, Iwasaki-cho, Nisshin 470-0196, Japan
- Department of Nutrition, Nagoya University of Arts and Sciences, 57, Iwasaki-cho, Nisshin 470-0196, Japan
| | - Yasutake Tomata
- School of Nutrition and Dietetics, Faculty of Health and Social Services, Kanagawa University of Human Services, 1-10-1, Heisei-cho, Yokosuka 238-8522, Japan
| | - Chiharu Uno
- Institute of Health and Nutrition, Nagoya University of Arts and Sciences, 57, Iwasaki-cho, Nisshin 470-0131, Japan
| | - Fumiya Kawase
- Graduate School of Nutritional Sciences, Nagoya University of Arts and Sciences, 57, Iwasaki-cho, Nisshin 470-0196, Japan
| | - Ryo Momosaki
- Department of Rehabilitation Medicine, Mie University Graduate School of Medicine, 2-174, Edobashi, Tsu 514-8507, Japan
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12
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Okada G, Mabuchi R, Kambara C, Tanimoto S, Fujii T. Association of eating habits and Firmicutes/Bacteroidetes ratio among Japanese female university students: A cross-sectional study. Nutr Health 2022:2601060221129771. [PMID: 36177526 DOI: 10.1177/02601060221129771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background & Aims: University students are prone to changes in their health status and lifestyle due to changes in their living environment and associated stress and anxiety. These changes may affect them in later life. This study utilized a cross-sectional study among Japanese female university students to examine dietary factors affecting their fecal microbiota. Methods: Sixty-eight healthy female university students were evaluated using an eating behavior assessment and diet history questionnaire. The 12-component Japanese diet index (JDI-12) was then calculated. A quantitative real-time PCR method was used to analyze the predominant bacterial species in the gut, and the Firmicutes/Bacteroidetes ratio (F/B ratio) at the phylum level was calculated. The partial correlation between the fecal microbiota and eating behavior abnormality score was assessed, and dietary habits associated with the F/B ratio were analyzed. Results: A significant correlation was identified between F/B ratios and the eating behavior abnormality score (r = 0.26, FDR = 0.064). Additionally, multiple regression analysis identified a negative correlation trend between the F/B ratio and JDI-12 score (β = -0.22; p = 0.091), and exploratory analysis found a negative association between the F/B ratio and consumption of beef and pork, one of the less beneficial JDI-12 components (β = -0.33, FDR = 0.120). Conclusion: In healthy female university students, there was a positive correlation between eating behavior abnormality and the F/B ratio, indicating that adherence to the Japanese diet pattern may be associated with a lower F/B ratio.
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Affiliation(s)
- Genya Okada
- Department of Health Sciences, 12798Prefectural University of Hiroshima, Hiroshima, Japan
| | - Ryota Mabuchi
- Department of Local Resources, Faculty of Bioresource Science, 12798Prefectural University of Hiroshima, Hiroshima, Japan
| | - Chisako Kambara
- Department of Health Sciences, 12798Prefectural University of Hiroshima, Hiroshima, Japan
| | - Shota Tanimoto
- Department of Health Sciences, 12798Prefectural University of Hiroshima, Hiroshima, Japan
| | - Tamotsu Fujii
- Department of Health Sciences, 12798Prefectural University of Hiroshima, Hiroshima, Japan
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13
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Nazri NSM, Vanoh D, Soo KL. Natural Food for Sarcopenia: A Narrative Review. Malays J Med Sci 2022; 29:28-42. [PMID: 36101538 PMCID: PMC9438863 DOI: 10.21315/mjms2022.29.4.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 01/13/2022] [Indexed: 10/26/2022] Open
Abstract
Sarcopenia is a syndrome characterised by progressive loss of skeletal muscle mass and strength. Proper nutrition is essential for management of sarcopenia. Thus, this article aims to review the association between dietary pattern or food groups consisting of natural food and sarcopenia. A literature search was performed using four databases namely PubMed, Scopus, Sage and ScienceDirect. The search terms used were 'fruits', 'vegetables', 'egg', 'fish', 'chicken', 'protein food', 'ulam', 'fresh herbs', 'sarcopenia', 'elderly and 'older adults'. A total of 18 studies were included in the final review. Adherence to Mediterranean and Japanese dietary pattern were associated with lower prevalence of sarcopenia whereas Western dietary pattern was significantly associated with higher risk of sarcopenia. For food groups, there is a significant association between dietary protein intake and sarcopenia. There are also significant associations between the intake of vegetables, fruits or both vegetables and fruits, and lower risk of sarcopenia. Consumption of natural food comprising of high-quality protein, fruits and vegetables have been associated with protection against muscle wasting and sarcopenia. Therefore, it is possible that a well-planned diet may works just as effectively as or possibly better than individual nutrient supplements for the prevention and treatment for sarcopenia among older adults.
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Affiliation(s)
- Nurul Syahidah Mohd Nazri
- Nutrition and Dietetics Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Divya Vanoh
- Nutrition and Dietetics Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
| | - Kah Leng Soo
- Nutrition and Dietetics Programme, School of Health Sciences, Universiti Sains Malaysia, Kelantan, Malaysia
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14
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Shirota M, Watanabe N, Suzuki M, Kobori M. Japanese-Style Diet and Cardiovascular Disease Mortality: A Systematic Review and Meta-Analysis of Prospective Cohort Studies. Nutrients 2022; 14:nu14102008. [PMID: 35631146 PMCID: PMC9147868 DOI: 10.3390/nu14102008] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 04/27/2022] [Accepted: 05/07/2022] [Indexed: 02/05/2023] Open
Abstract
This systematic review and meta-analysis elucidate the effects of the Japanese-style diet and characteristic Japanese foods on the mortality risk of cardiovascular disease (CVD), cerebrovascular disease (stroke), and heart disease (HD). This review article followed the PRISMA guidelines. A systematic search in PubMed, The Cochrane Library, JDreamIII, and ICHUSHI Web identified prospective cohort studies on Japanese people published till July 2020. The meta-analysis used a random-effects model, and heterogeneity and publication bias were evaluated with I2 statistic and Egger’s test, respectively. Based on inclusion criteria, we extracted 58 articles, including 9 on the Japanese-style diet (n = 469,190) and 49 (n = 2,668,238) on characteristic Japanese foods. With higher adherence to the Japanese-style diet, the pooled risk ratios (RRs) for CVD, stroke, heart disease/ischemic heart disease combined (HD/IHD) mortality were 0.83 (95% CI, 0.77–0.89, I2 = 58%, Egger’s test: p = 0.625, n = 9 studies), 0.80 (95% CI, 0.69–0.93, I2 = 66%, Egger’s test: p = 0.602, n = 6 studies), and 0.81 (95% CI, 0.75–0.88, I2 = 0%, Egger’s test: p = 0.544, n = 6 studies), respectively. Increased consumption of vegetables, fruits, fish, green tea, and milk and dairy products decreased the RR for CVD, stroke, or HD mortality. Increased salt consumption elevated the RR for CVD and stroke mortality. Increased consumption of dietary fiber and plant-derived protein decreased the RR for CVD, stroke, and HD/IHD mortality. The Japanese-style diet and characteristic Japanese foods may reduce CVD mortality. Most studies conducted diet surveys between 1980 and the 1990s. This meta-analysis used articles that evaluated the same cohort study by a different method. A new large-scale cohort study matching the current Japanese dietary habits is needed to confirm these findings.
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Affiliation(s)
- Masayuki Shirota
- Institute of Food Research, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba-shi 305-8642, Ibaraki, Japan;
| | - Norikazu Watanabe
- Yakujihou Marketing Jimusho Inc., Level 3, Sanno Park Tower, 2-11-1 Nagata-cho, Chiyoda-ku, Tokyo 100-6162, Japan; (N.W.); (M.S.)
| | - Masataka Suzuki
- Yakujihou Marketing Jimusho Inc., Level 3, Sanno Park Tower, 2-11-1 Nagata-cho, Chiyoda-ku, Tokyo 100-6162, Japan; (N.W.); (M.S.)
| | - Masuko Kobori
- Institute of Food Research, National Agriculture and Food Research Organization, 2-1-2 Kannondai, Tsukuba-shi 305-8642, Ibaraki, Japan;
- Correspondence: ; Tel.: +81-29-838-8011
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15
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Saji N, Saito Y, Yamashita T, Murotani K, Tsuduki T, Hisada T, Sugimoto T, Niida S, Toba K, Sakurai T. Relationship Between Plasma Lipopolysaccharides, Gut Microbiota, and Dementia: A Cross-Sectional Study. J Alzheimers Dis 2022; 86:1947-1957. [PMID: 35213381 DOI: 10.3233/jad-215653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Previous studies have demonstrated associations between gut microbiota, microbial metabolites, and cognitive decline. However, relationships between these factors and lipopolysaccharides (LPS; molecules of the outer membrane of gram-negative bacteria) remain controversial. OBJECTIVE To evaluate associations between plasma LPS, gut microbiota, and cognitive function. METHODS We performed a cross-sectional sub-analysis of data of 127 participants (women: 58%, mean age: 76 years) from our prospective cohort study regarding the relationship between gut microbiota and cognitive function. We enrolled patients who visited our memory clinic and assessed demographics, dementia-related risk factors, cognitive function, brain imaging, gut microbiomes, and microbial metabolites. We evaluated relationships between cognitive decline and plasma LPS using multivariable logistic regression analyses. RESULTS Plasma LPS concentration increased with increasing degree of cognitive decline and total cerebral small vessel disease (SVD) score (Kruskal-Wallis test; p = 0.016 and 0.007, respectively). Participants with high plasma LPS concentrations tended to have lower concentrations of gut microbial metabolites, such as lactic acid and acetic acid, and were less likely to consume fish and shellfish (44.7% versus 69.6%, p = 0.027) than those with low plasma LPS concentrations. Multivariable analyses revealed that plasma LPS concentration was independently associated with the presence of mild cognitive impairment in participants without dementia (odds ratio: 2.09, 95% confidence interval: 1.14-3.84, p = 0.007). CONCLUSION In this preliminary study, plasma LPS concentration was associated with both cognitive decline and cerebral SVD and significantly correlated with beneficial gut microbial metabolites. Plasma LPS may be a risk factor for cognitive decline.
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Affiliation(s)
- Naoki Saji
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Yoshihiro Saito
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Tomoya Yamashita
- Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Kenta Murotani
- Biostatistics Center, Graduate School of Medicine, Kurume University, Fukuoka, Japan
| | - Tsuyoshi Tsuduki
- Laboratory of Food and Biomolecular Science, Department of Bioscience and Biotechnology for Future Bioindustries, Graduate School of Agricultural Science, Tohoku University, Miyagi, Japan
| | | | - Taiki Sugimoto
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan.,Department of Prevention and Care Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Shumpei Niida
- Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Kenji Toba
- Tokyo Metropolitan Geriatric Medical Center, Tokyo, Japan
| | - Takashi Sakurai
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan.,Department of Prevention and Care Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan.,Department of Cognition and Behavioral Science, Nagoya University Graduate School of Medicine, Aichi, Japan
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16
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Saji N, Murotani K, Sato N, Tsuduki T, Hisada T, Shinohara M, Sugimoto T, Niida S, Toba K, Sakurai T. Relationship Between Plasma Neurofilament Light Chain, Gut Microbiota, and Dementia: A Cross-Sectional Study. J Alzheimers Dis 2022; 86:1323-1335. [PMID: 35180112 DOI: 10.3233/jad-215141] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Previous studies have demonstrated associations between gut microbiota, microbial metabolites, and cognitive decline. However, relationships between these factors and neurofilament light chain (NfL; a disease-nonspecific biomarker of neural damage) remain controversial. OBJECTIVE To evaluate the associations between plasma NfL, gut microbiota, and cognitive function. METHODS We performed a cross-sectional sub-analysis of data from our prospective cohort study that was designed to investigate the relationship between gut microbiota and cognitive function. Patients who visited our memory clinic were enrolled and demographics, dementia-related risk factors, cognitive function, brain imaging, gut microbiomes, and microbial metabolites were assessed. We evaluated the relationships between the gut microbiome, microbial metabolites, and plasma NfL. Moreover, the relationships between plasma NfL and cognitive function were assessed using multivariable logistic regression analyses. RESULTS We analyzed 128 participants (women: 59%, mean age: 74 years). Participants with high (above the median) plasma NfL concentrations tended to be older, women, and hypertensive and have a history of stroke, chronic kidney disease, and dementia. Plasma NfL was also associated with cerebral small vessel disease. However, plasma NfL levels were not significantly correlated with gut microbial metabolites. Multivariable analyses revealed that a higher plasma NfL concentration was independently associated with the presence of dementia (odds ratio: 9.94, 95% confidence interval: 2.75-48.2, p < 0.001). CONCLUSION High plasma NfL concentration was independently associated with the presence of dementia as previously reported. However, plasma NfL levels were not significantly correlated with gut microbial metabolites in this preliminary study.
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Affiliation(s)
- Naoki Saji
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Kenta Murotani
- Biostatistics Center, Graduate School of Medicine, Kurume University, Fukuoka, Japan
| | - Naoyuki Sato
- Department of Aging Neurobiology, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Tsuyoshi Tsuduki
- Laboratory of Food and Biomolecular Science, Department of Bioscience and Biotechnology for Future Bioindustries, Graduate School of Agricultural Science, Tohoku University, Miyagi, Japan
| | | | - Mitsuru Shinohara
- Department of Aging Neurobiology, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Taiki Sugimoto
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan.,Department of Prevention and Care Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Shumpei Niida
- Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan
| | - Kenji Toba
- Tokyo Metropolitan Geriatric Medical Center, Tokyo, Japan
| | - Takashi Sakurai
- Center for Comprehensive Care and Research on Memory Disorders, National Center for Geriatrics and Gerontology, Aichi, Japan.,Department of Prevention and Care Science, Research Institute, National Center for Geriatrics and Gerontology, Aichi, Japan.,Department of Cognition and Behavioral Science, Nagoya University Graduate School of Medicine, Aichi, Japan
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17
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Relationship between the Japanese-style diet, gut microbiota, and dementia: A cross-sectional study. Nutrition 2021; 94:111524. [PMID: 34952361 DOI: 10.1016/j.nut.2021.111524] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 09/16/2021] [Accepted: 10/15/2021] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Previous studies have shown associations between the gut microbiota, microbial metabolites, and cognitive decline. However, the effect of the dietary composition on such associations has not been fully investigated. The aims of this study were to evaluate the relationships between adherence to a Japanese-style diet, the gut microbiota, and cognitive decline. Furthermore, we aimed to evaluate the three forms of the Japanese diet index (JDI; the conventional [JDI9], updated [JDI12], and a newly modified JDI) to determine which would show the closest relationships with cognition and the gut microbiota. METHODS We performed a cross-sectional subanalysis of data from a prospective hospital-based cohort study. We assessed the patients' demographic characteristics, dietary composition, risk factors, cognitive function, brain imaging, gut microbiome, and microbial metabolites. On the basis of previous studies, a nine-component traditional JDI (JDI9), a 12-component modern JDI (JDI12), and a 12-component revised JDI (rJDI12), were defined. We evaluated the relationships between the JDI scores, cognitive function, and the gut microbiome and microbial metabolites using multivariable logistic regression analyses. RESULTS We analyzed data from 85 eligible participants (61% women; mean age: 74.6 ± 7.4 y). Compared with participants who had dementia, those without dementia were more likely to consume foods in the JDI12, including fish and shellfish (64.5 versus 39.1%, P = 0.048), mushrooms (61.3 versus 30.4%, P = 0.015), soybeans and soybean-derived foods (62.9 versus 30.4%, P = 0.013), and coffee (71 versus 43.5%, P = 0.024). There were non-significant trends toward lower fecal concentrations of gut microbial metabolites in participants with a more traditional Japanese diet. Participants with dementia had lower JDI scores than those without dementia (dementia versus non-dementia, median JDI9 score: 5 versus 7, P = 0.049; JDI12: 7 versus 8, P = 0.017; and rJDI12: 7 versus 9, P = 0.006, respectively). CONCLUSIONS Adherence to a traditional Japanese diet was found to be inversely associated with cognitive decline and tended to be associated with lower concentrations of gut microbial metabolites.
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18
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Noguchi T, Kondo F, Nishiyama T, Otani T, Nakagawa-Senda H, Watanabe M, Imaeda N, Goto C, Hosono A, Shibata K, Kamishima H, Nogimura A, Nagaya K, Yamada T, Suzuki S. The impact of marital transitions on vegetable intake in middle-aged and older Japanese adults: a five-year longitudinal study. J Epidemiol 2020; 32:89-95. [PMID: 33071250 PMCID: PMC8761567 DOI: 10.2188/jea.je20200343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Background Marital transitions are associated with adverse health events, such as mortality and cardiovascular disease. Since marital transitions (eg, becoming widowed) are unavoidable life events, it is necessary to identify modifiable intermediate outcomes. Thus, we examined the association between marital transitions and vegetable intake among middle-aged and older Japanese adults. Methods This longitudinal study included Japanese adults aged 40–79 years who received an annual health checkup between 2007 and 2011 (baseline) and 5 years later (follow-up). Marital transitions were classified as whether and what type of transition occurred during the 5-year period and comprised five groups: consistently married, married to widowed, married to divorced, not married to married, and remained not married. Changes in total vegetable, green and yellow vegetable, and light-colored vegetable intake from baseline to follow-up were calculated using the Food Frequency Questionnaire. Results Data from 4,813 participants were analyzed (mean age, 59.4 years; 44.1% women). Regarding marital transitions, 3,960 participants were classified as “consistently married,” 135 as “married to widowed,” 40 as “married to divorced,” 60 as “not married to married,” and 529 as “remained not married.” Multivariable linear regression analysis revealed that compared to consistently married, married to widowed was inversely associated with the change in total vegetable intake (β = −16.64, SE = 7.68, P = 0.030) and light-colored vegetable intake (β = −11.46, SE = 4.33, P = 0.008). Conclusion Our findings suggest that being widowed could result in a reduced intake of vegetables. Hence, dietary counseling according to marital situation is necessary.
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Affiliation(s)
- Taiji Noguchi
- Department of Social Science, Center for Gerontology and Social Science, National Center for Geriatrics and Gerontology.,Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Fumi Kondo
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Takeshi Nishiyama
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Takahiro Otani
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Hiroko Nakagawa-Senda
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Miki Watanabe
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Nahomi Imaeda
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences.,Department of Nutrition Science, Faculty of Health Science, Shigakkan University
| | - Chiho Goto
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences.,Department of Health and Nutrition, Faculty of Health and Living, Nagoya Bunri University
| | - Akihiro Hosono
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences.,Atsuta Public Health Center, City of Nagoya
| | - Kiyoshi Shibata
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences.,Department of Health and Nutritional Sciences, Nagoya Keizai University
| | - Hiroyuki Kamishima
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences.,Department of Home Economics, Aichi Gakusen University
| | - Akane Nogimura
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences.,Department of Anesthesiology and Intensive Care Medicine, Nagoya City University Graduate School of Medical Sciences
| | - Kenji Nagaya
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
| | - Tamaki Yamada
- Okazaki Public Health Center, Okazaki Medical Association
| | - Sadao Suzuki
- Department of Public Health, Nagoya City University Graduate School of Medical Sciences
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Association between adherence to the Japanese diet and all-cause and cause-specific mortality: the Japan Public Health Center-based Prospective Study. Eur J Nutr 2020; 60:1327-1336. [PMID: 32676701 PMCID: PMC7987617 DOI: 10.1007/s00394-020-02330-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Accepted: 07/07/2020] [Indexed: 12/18/2022]
Abstract
Purpose The present study aimed to examine the association between adherence to the Japanese diet and the subsequent risk of all-cause and cause-specific mortality using a large-scale cohort from settings all over Japan. Methods We analyzed data from a cohort study of 92,969 Japanese adults aged 45–74 years, covering 11 public health center areas nationwide. We collected dietary information using a validated 147-item food frequency questionnaire. Adherence to the Japanese diet consisting of eight components (high intake of rice, miso soup, seaweeds, pickles, green and yellow vegetables, fish, and green tea; low intake of beef and pork) was assessed using 8-item Japanese Diet Index (JDI8) score, with scores ranging from 0 to 8. The Cox proportional hazards model was used to estimate the hazard ratio (HR) and 95% confidence interval (CI) for all-cause and cause-specific mortality. Results During a median follow-up of 18.9 years, we documented 20,596 deaths. A higher JDI8 score was significantly associated with a lower risk for all-cause and cardiovascular disease (CVD) mortality. The multivariable-adjusted HR of all-cause and CVD mortality for the highest JDI8 score group (score of 6–8) versus the lowest JDI8 score group (score of 0–2) were 0.86 (95% CI 0.81–0.90, P trend < 0.001), and 0.89 (95% CI 0.80–0.99, P trend = 0.007), respectively. Conclusions Adhering to the Japanese diet, as assessed by the JDI8, was associated with a decreased risk of all-cause and CVD mortality among adults living in multiple areas across Japan. Electronic supplementary material The online version of this article (10.1007/s00394-020-02330-0) contains supplementary material, which is available to authorized users.
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Barrea L, Gallo M, Ruggeri RM, Giacinto PD, Sesti F, Prinzi N, Adinolfi V, Barucca V, Renzelli V, Muscogiuri G, Colao A, Baldelli R. Nutritional status and follicular-derived thyroid cancer: An update. Crit Rev Food Sci Nutr 2020; 61:25-59. [PMID: 31997660 DOI: 10.1080/10408398.2020.1714542] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The incidence of differentiated thyroid cancer has been increasing in the last decades all over the world. Such a steady growth cannot be entirely attributable to more intensive thyroid nodule screening and more sensitive diagnostic procedures. Several environmental factors have changed with sufficient rapidity in the same time frame and may represent credible candidates for this increase. They include modified iodine intake, lifestyle-associated risk factors, exposure to various toxic compounds, pollutants and xenobiotics, nutritional deficiencies, eating habits and comorbidities. Foremost, nutritional patterns have gained high interest as possible promoters and modifiable risk factors for thyroid cancer in recent years. The aim of this narrative review is to focus on the relationship between thyroid cancer and nutritional factors, dietary habits and obesity. Low iodine intake has been associated to increased risk of thyroid cancer, favoring the development of more aggressive histotypes. Moreover, correction of iodine deficiency can shift thyroid cancer subtypes toward less aggressive forms, without affecting the overall risk for cancer. Actually, evidence regarding the association between selenium and vitamin D deficiency and thyroid cancer is very limited, despite their well-known anti-cancer potentials, and the clinical usefulness of their supplementation is still uncertain in this setting. Albeit the relationship between single foods and thyroid cancer is difficult to examine, fish and iodine-rich foods, vegetables, and fruits might exert protective effects on thyroid cancer risk. Conversely, no clear association has been found for other foods to date. Lastly, a clear association between obesity and the risk of thyroid cancer, with more aggressive behavior, seems to emerge from most studies, likely involving variations in thyroid function and chronic inflammation mediated by cytokines, insulin, leptin and adiponectins. Although no definite association between dietary factors and thyroid cancer has been firmly established so far, some nutritional patterns, together with excessive weight, seem to play a relevant role in thyroid cancer carcinogenesis as well as in its severity and aggressiveness. These effects may play an additive role to the well-established one exerted by environmental carcinogens, such as pollutants and radiation exposure.
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Affiliation(s)
- Luigi Barrea
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Naples, Italy
| | - Marco Gallo
- Oncological Endocrinology Unit, Department of Medical Sciences, University of Turin, AOU Città della Salute e della Scienza di Torino, Turin, Italy
| | - Rosaria Maddalena Ruggeri
- Unit of Endocrinology, Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Paola Di Giacinto
- Endocrinology Unit, Department of Oncology and Medical Specialities, A.O. San Camillo-Forlanini, Rome, Italy
| | - Franz Sesti
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Natalie Prinzi
- Department of Medical Oncology, Fondazione IRCCS Istituto Nazionale Tumori Milano, ENETS Center of Excellence, Milan, Italy
| | - Valerio Adinolfi
- Endocrinology and Diabetology Unit, ASL Verbano Cusio Ossola, Domodossola, Italy
| | - Viola Barucca
- Digestive and Liver Disease Unit, S. Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, Rome, Italy
| | - Valerio Renzelli
- Department of Experimental Medicine, Sapienza University of Rome, Rome, Italy
| | - Giovanna Muscogiuri
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Naples, Italy
| | - Annamaria Colao
- Unit of Endocrinology, Dipartimento di Medicina Clinica e Chirurgia, Federico II University Medical School of Naples, Naples, Italy
| | - Roberto Baldelli
- Endocrinology Unit, Department of Oncology and Medical Specialities, A.O. San Camillo-Forlanini, Rome, Italy
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Kanauchi M, Kanauchi K. Proposal for an Empirical Japanese Diet Score and the Japanese Diet Pyramid. Nutrients 2019; 11:nu11112741. [PMID: 31726696 PMCID: PMC6893777 DOI: 10.3390/nu11112741] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/29/2019] [Accepted: 11/06/2019] [Indexed: 12/12/2022] Open
Abstract
A traditional Japanese diet (JD) has been widely regarded as healthy, contributing to longevity. The modern Japanese lifestyle has become markedly westernized, and it is speculated that the number of people who eat JD is decreasing. A simple evaluation of people with low adherence to JD will help improve dietary life. We developed a simple assessment tool that can capture JD, and examined factors associated with low adherence to JD. A total of 1458 subjects aged 18 to 84 years completed a brief self-administered diet history questionnaire. We constructed an empirical Japanese diet score (eJDS) consisting of 12 items from the common characteristics of a JD. In our participants, 47.7% of subjects reported low adherence to JD and only 11.1% demonstrated high adherence. In multivariate logistic regression analysis, younger age persons, physically inactive persons, and heavy drinkers were associated with low adherence to JD. Based on the cutoff values of eJDS, we proposed to create a Japanese diet pyramid that is easy to use visually. In conclusion, the eJDS and the Japanese diet pyramid will be useful tools for nutrition education and dietary guidance.
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Affiliation(s)
- Masao Kanauchi
- Department of Health and Nutrition, Faculty of Health Science, Kio University, Koryo-cho, Nara 635-0832, Japan
- Correspondence: ; Tel.: +81-745-54-1601
| | - Kimiko Kanauchi
- Internal Medicine, Nara-Higashi Hospital, Tenri, Nara 632-0001, Japan;
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