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Aljuraiban GS, Gibson R, Chan DS, Van Horn L, Chan Q. The Role of Diet in the Prevention of Hypertension and Management of Blood Pressure: An Umbrella Review of Meta-Analyses of Interventional and Observational Studies. Adv Nutr 2024; 15:100123. [PMID: 37783307 PMCID: PMC10831905 DOI: 10.1016/j.advnut.2023.09.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 09/12/2023] [Accepted: 09/26/2023] [Indexed: 10/04/2023] Open
Abstract
High blood pressure (BP) is a major pathological risk factor for the development of several cardiovascular diseases. Diet is a key modifier of BP, but the underlying relationships are not clearly demonstrated. This is an umbrella review of published meta-analyses to critically evaluate the wide range of dietary evidence from bioactive compounds to dietary patterns on BP and risk of hypertension. PubMed, Embase, Web of Science, and Cochrane Central Register of Controlled Trials were searched from inception until October 31, 2021, for relevant meta-analyses of randomized controlled trials or meta-analyses of observational studies. A total of 175 publications reporting 341 meta-analyses of randomized controlled trials (145 publications) and 70 meta-analyses of observational studies (30 publications) were included in the review. The methodological quality of the included publications was assessed using Assessment of Multiple Systematic Reviews 2 and the evidence quality of each selected meta-analysis was assessed using NutriGrade. This umbrella review supports recommended public health guidelines for prevention and control of hypertension. Dietary patterns including the Dietary Approaches to Stop Hypertension and the Mediterranean-type diets that further restrict sodium, and moderate alcohol intake are advised. To produce high-quality evidence and substantiate strong recommendations, future research should address areas where the low quality of evidence was observed (for example, intake of dietary fiber, fish, egg, meat, dairy products, fruit juice, and nuts) and emphasize focus on dietary factors not yet conclusively investigated.
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Affiliation(s)
- Ghadeer S Aljuraiban
- Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, Kingdom of Saudi Arabia.
| | - Rachel Gibson
- Department of Nutritional Sciences, King's College London, London, United Kingdom; Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom.
| | - Doris Sm Chan
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom.
| | - Linda Van Horn
- Department of Preventive Medicine, Northwestern University, Chicago, IL, United States.
| | - Queenie Chan
- Department of Epidemiology and Biostatistics, School of Public Health, Imperial College London, London, United Kingdom.
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2
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Supanivatin P, Thipayarat A, Siriwattanayotin S, Ekkaphan P, Deepatana A, Wongwiwat J. A Comparative Analysis of Phenolic Content, Antioxidant Activity, Antimicrobial Activity, and Chemical Profile of Coffea robusta Extracts Using Subcritical Fluid Extraction and Supercritical Carbon Dioxide Extraction. Foods 2023; 12:3443. [PMID: 37761151 PMCID: PMC10528456 DOI: 10.3390/foods12183443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/05/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
In this study, extracts of Robusta-roasted coffee were obtained using various extraction techniques, including subcritical fluid extractions using HFC-134a and HCFC-22 under room-temperature batch extraction, frozen-temperature batch extraction, and continuous extraction conditions. Additionally, supercritical carbon dioxide (SCCO2) extraction was performed using ethanol and tetrahydrofuran as co-solvents. These extractions were performed due to the presence of potent antioxidants and antibacterial substances in the extracts. Extraction machines were built to process the extraction. The antioxidant potential of the extracts was evaluated using total phenolic content and DPPH and FRAP assays, while antibacterial potential was identified using the disk diffusion method. The results showed that HCFC-22 extraction produced the highest yield compared to other extraction methods, but HFC-134a extraction had the highest antioxidant potential values. The yield and antioxidant potential of the extracts obtained using room-temperature batch extraction were slightly higher than those obtained using frozen-temperature batch extraction and continuous extraction. The yield and antioxidant potential of the extracts obtained using SCCO2 extraction were similar to those obtained using HFC-134a and HCFC-22 extractions, and co-solvents slightly improved the extraction performance. The extracts were found to be more effective as inhibitors of Gram-positive bacteria than Gram-negative bacteria. Caffeine was the most prominent tentative chemical compound in all coffee extracts. This research study provides a better understanding of various extraction techniques using HFC-134a, HCFC-22, and SCCO2 when applied to roasted Robusta coffee beans, with a focus on yield, antioxidant potential, antimicrobial potential, and tentative chemical profiles.
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Affiliation(s)
- Pattarin Supanivatin
- Department of Food Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand; (P.S.); (A.T.); (S.S.)
| | - Aluck Thipayarat
- Department of Food Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand; (P.S.); (A.T.); (S.S.)
| | - Suwit Siriwattanayotin
- Department of Food Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand; (P.S.); (A.T.); (S.S.)
| | - Paweena Ekkaphan
- Scientific and Technological Research Equipment Centre, Chulalongkorn University, Bangkok 10330, Thailand;
| | - Anat Deepatana
- Department of Chemical Engineering, Faculty of Engineering, Burapha University, Chonburi 20131, Thailand;
| | - Jakrapop Wongwiwat
- Department of Mechanical Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
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3
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Haș IM, Tit DM, Bungau SG, Pavel FM, Teleky BE, Vodnar DC, Vesa CM. Cardiometabolic Risk: Characteristics of the Intestinal Microbiome and the Role of Polyphenols. Int J Mol Sci 2023; 24:13757. [PMID: 37762062 PMCID: PMC10531333 DOI: 10.3390/ijms241813757] [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: 08/03/2023] [Revised: 09/05/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Cardiometabolic diseases like hypertension, type 2 diabetes mellitus, atherosclerosis, and obesity have been associated with changes in the gut microbiota structure, or dysbiosis. The beneficial effect of polyphenols on reducing the incidence of this chronic disease has been confirmed by numerous studies. Polyphenols are primarily known for their anti-inflammatory and antioxidant properties, but they can also modify the gut microbiota. According to recent research, polyphenols positively influence the gut microbiota, which regulates metabolic responses and reduces systemic inflammation. This review emphasizes the prebiotic role of polyphenols and their impact on specific gut microbiota components in patients at cardiometabolic risk. It also analyzes the most recent research on the positive effects of polyphenols on cardiometabolic health. While numerous in vitro and in vivo studies have shown the interaction involving polyphenols and gut microbiota, additional clinical investigations are required to assess this effect in people.
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Affiliation(s)
- Ioana Mariana Haș
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (F.M.P.); (C.M.V.)
| | - Delia Mirela Tit
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (F.M.P.); (C.M.V.)
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
| | - Simona Gabriela Bungau
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (F.M.P.); (C.M.V.)
- Department of Pharmacy, Faculty of Medicine and Pharmacy, University of Oradea, 410028 Oradea, Romania
| | - Flavia Maria Pavel
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (F.M.P.); (C.M.V.)
| | - Bernadette-Emoke Teleky
- Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania; (B.-E.T.); (D.C.V.)
- Department of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Dan Cristian Vodnar
- Institute of Life Sciences, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania; (B.-E.T.); (D.C.V.)
- Department of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine, 400372 Cluj-Napoca, Romania
| | - Cosmin Mihai Vesa
- Doctoral School of Biological and Biomedical Sciences, University of Oradea, 410087 Oradea, Romania; (I.M.H.); (F.M.P.); (C.M.V.)
- Department of Preclinical Disciplines, Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania
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Shao B, Li H, Zhang P, Teng X, Wang H, Verdi T, Bhat LT, Zhang F. The effect of gum consumption on blood pressure as a risk factor for coronary heart disease: A meta-analysis of controlled trials. INT J VITAM NUTR RES 2023; 93:61-71. [PMID: 33472439 DOI: 10.1024/0300-9831/a000696] [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: 11/19/2022]
Abstract
Guar gum has been used in the management of hypercholesterolemia, constipation, weight loss, type 2 diabetes mellitus and hypertension. Our aim was to verify the hypothesis that Guar gum can be used as an alternative to pharmacological agents in the treatment of mild hypertension. Thus, we conducted a systematic review and meta-analysis to evaluate the effectiveness of Guar gum in reducing blood pressure. We searched the Cochrane Library, PubMed/Medline, Scopus and Google Scholar databases for studies published in the English language up to June 2020 which evaluated the effects of gum consumption on systolic blood pressure (SBP) and diastolic blood pressure (DBP). Nine randomized clinical trials with suitable comparison groups (placebo/control) reported SBP and DBP as outcome measures. These trials involved in total 640 participants. The overall results indicated that the consumption of gum resulted in a significant change in SBP (WMD: -1.190 mmHg, 95% CI: -2.011, -0.370) and DBP (WMD: -1.101 mmHg, 95% CI: -1.597, -0.605). Moreover, the greatest reduction in blood pressure was seen in patients with type 2 diabetes mellitus and metabolic syndrome who consumed Guar gum (WMD: -3.375 mmHg). In addition, there was a significant decrease in SBP if the gum dosage was > 15 g (WMD: -6.637 mmHg) and if the intervention duration was > 12 weeks (WMD: -1.668 mmHg). The results of the present dose-response meta-analysis support the employment of gum consumption in the reduction of SBP and DBP. Based on the sub-group analyses, we highlight that the greatest decrease in SBP was experienced if the gum dosage was > 15 g and when the intervention lasted > 12 weeks.
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Affiliation(s)
- Baowei Shao
- Department of Cardiac Surgery, Jinan Central Hospital, Shandong, China
| | - Haijie Li
- Department of Cardiac Surgery, Jinan Central Hospital, Shandong, China
| | - Pengfei Zhang
- Department of Cardiac Surgery, Jinan Central Hospital, Shandong, China
| | - Xilong Teng
- Department of Cardiac Surgery, Jinan Central Hospital, Shandong, China
| | - Honglu Wang
- Department of Cardiac Surgery, Jinan Central Hospital, Shandong, China
| | - Thais Verdi
- Department of iochemistry, physioPlogy, Training and Sports nutrition, Campinas State University, Brazil
| | - Latha T Bhat
- Department of Medical Surgical Nursing, Manipal College of Nursing Manipal, Manipal University, India
| | - Fengquan Zhang
- Department of Cardiac Surgery, Jinan Central Hospital, Shandong, China
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Mah E, Chen O, Liska DJ, Blumberg JB. Dietary Supplements for Weight Management: A Narrative Review of Safety and Metabolic Health Benefits. Nutrients 2022; 14:nu14091787. [PMID: 35565754 PMCID: PMC9099655 DOI: 10.3390/nu14091787] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2022] [Revised: 04/13/2022] [Accepted: 04/19/2022] [Indexed: 12/15/2022] Open
Abstract
Dietary supplements for weight management include myriad ingredients with thermogenic, lipotropic, satiety, and other metabolic effects. Recently, the safety of this product category has been questioned. In this review, we summarize the safety evidence as well as relevant clinical findings on weight management and metabolic effects of six representative dietary supplement ingredients: caffeine, green tea extract (GTE), green coffee bean extract (GCBE), choline, glucomannan, and capsaicinoids and capsinoids. Of these, caffeine, GTE (specifically epigallocatechin gallate [EGCG]), and choline have recommended intake limits, which appear not to be exceeded when used according to manufacturers’ instructions. Serious adverse events from supplements with these ingredients are rare and typically involve unusually high intakes. As with any dietary component, the potential for gastrointestinal intolerance, as well as possible interactions with concomitant medications/supplements exist, and the health status of the consumer should be considered when consuming these components. Most of the ingredients reviewed also improved markers of metabolic health, such as glucose, lipids, and blood pressure, although the data are limited for some. In summary, weight management supplements containing caffeine, GTE, GCBE, choline, glucomannan, and capsaicinoids and capsinoids are generally safe when taken as directed and demonstrate metabolic health benefits for overweight and obese people.
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Affiliation(s)
- Eunice Mah
- Biofortis Research, Addison, IL 60101, USA
- Correspondence:
| | - Oliver Chen
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA 02111, USA; (O.C.); (J.B.B.)
| | | | - Jeffrey B. Blumberg
- Friedman School of Nutrition Science and Policy, Tufts University, Boston, MA 02111, USA; (O.C.); (J.B.B.)
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Insulin-Related Liver Pathways and the Therapeutic Effects of Aerobic Training, Green Coffee, and Chlorogenic Acid Supplementation in Prediabetic Mice. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:5318245. [PMID: 35663196 PMCID: PMC9162863 DOI: 10.1155/2022/5318245] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 01/24/2022] [Accepted: 01/28/2022] [Indexed: 12/16/2022]
Abstract
Background The liver controls blood glucose levels via regulation of anabolic (glycogen synthesis and gluconeogenesis) and catabolic (glycolysis and glycogenolysis) processes through activation of the PI3K-AKT signalling pathway. The aim of this study was to assess the effect of aerobic training, green coffee, and chlorogenic acid supplementation on glucose metabolism-regulating pathways in prediabetic mice. Methods C57BL/6 mice were exposed to a high-fat diet and physical activity limitation to induce a state of prediabetes. After 12 weeks, mice were fed a high-fat diet compared to the control mice. The prediabetic mice were further treated with either green coffee, chlorogenic acid, or training or combinations of the same for 10 weeks. At the end of the experimental period, metabolic data (FBG, GTT, HOMA for IR, plasma level of insulinfrom systematic, AST, and ALT assessed into blood), histopathologic, and analysis of gene and protein expressions were obtained for target tissues. Results Training along with green coffee and chlorogenic acid supplementation improved complications of prediabetes including weight gain and elevated fasting blood glucose and plasma insulin levels. These effects were associated with the changes in mRNA levels of genes important in hepatic glycogen synthesis (GYS2), glucogenesis (PCK and G6PC2), and glycolysis (GK, PK, and PFKL). Conclusion The training in conjunction with green coffee or chlorogenic acid is effective in the prevention of prediabetes in mice. As these interventions are relatively inexpensive and safe application to individuals with prediabetes appears warranted.
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7
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The Effect of Dietary Polyphenols on Vascular Health and Hypertension: Current Evidence and Mechanisms of Action. Nutrients 2022; 14:nu14030545. [PMID: 35276904 PMCID: PMC8840535 DOI: 10.3390/nu14030545] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/20/2022] [Accepted: 01/23/2022] [Indexed: 02/08/2023] Open
Abstract
The aim of this review was to explore existing evidence from studies conducted on humans and summarize the mechanisms of action of dietary polyphenols on vascular health, blood pressure and hypertension. There is evidence that some polyphenol-rich foods, including berry fruits rich in anthocyanins, cocoa and green tea rich in flavan-3-ols, almonds and pistachios rich in hydroxycinnamic acids, and soy products rich in isoflavones, are able to improve blood pressure levels. A variety of mechanisms can elucidate the observed effects. Some limitations of the evidence, including variability of polyphenol content in plant-derived foods and human absorption, difficulty disentangling the effects of polyphenols from other dietary compounds, and discrepancy of doses between animal and human studies should be taken into account. While no single food counteracts hypertension, adopting a plant-based dietary pattern including a variety of polyphenol-rich foods is an advisable practice to improve blood pressure.
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Sudeep HV, Shyam Prasad K. Supplementation of green coffee bean extract in healthy overweight subjects increases lean mass/fat mass ratio: A randomized, double-blind clinical study. SAGE Open Med 2021; 9:20503121211002590. [PMID: 33796302 PMCID: PMC7983441 DOI: 10.1177/20503121211002590] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Accepted: 12/01/2020] [Indexed: 12/19/2022] Open
Abstract
Objective In this study, we have demonstrated that supplementation of a complex of chlorogenic acid isomers (CGA-7TM) could significantly mitigate the risk of obesity in healthy overweight subjects. Method In a double-blind, placebo-controlled clinical study, healthy overweight (body mass index ⩾ 25 to <30 kg/m2) male and female subjects (N = 71) were randomly allocated to receive 500 mg CGA-7 or placebo daily for 12 weeks. Changes in body weight and body mass index were recorded alongside vital signs and anthropometric measurements at week 4, 8 and 12. Body composition was assessed at baseline and the end of treatment using dual-energy X-ray absorptiometry. Safety analysis included serum biochemical and haematological assessments and measurement of vital signs. In addition, any adverse or serious adverse events were recorded during the study. Results Sixty subjects completed the study. Mean body weight and body mass index were significantly reduced in CGA-7 group as compared to placebo (p < 0.001). CGA-7 group showed significant changes in body fat (%), fat mass and lean mass in comparison with placebo group (1.38% ± 1.4% vs -0.22% ± 0.86%, 1.97 ± 1.44 kg vs -0.39 ± 1.31 kg; 0.81 ± 1.20 kg vs -0.13 ± 0.97 kg, p < 0.001). Consumption of CGA-7 significantly improved the serum lipid profile. Importantly, CGA-7 consumption in humans had no adverse effects and was well tolerated during the study. The blood biochemical and haematological parameters marginally varied in the treatment groups throughout the study. Conclusion To conclude, this study provides scientific validation of the functionality of green coffee bean extract and recommends the safety of the supplementation in healthy individuals.
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Affiliation(s)
- H V Sudeep
- R&D Center for Excellence, Vidya Herbs Pvt. Ltd., Bangalore, India
| | - K Shyam Prasad
- R&D Center for Excellence, Vidya Herbs Pvt. Ltd., Bangalore, India
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Hoang T, Kim J. Phytonutrient supplements and metabolic biomarkers of cardiovascular disease: An umbrella review of meta-analyses of clinical trials. Phytother Res 2021; 35:4171-4182. [PMID: 33724587 DOI: 10.1002/ptr.7079] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/22/2021] [Accepted: 02/24/2021] [Indexed: 12/20/2022]
Abstract
Phytonutrients exert several pharmacological effects on humans. In this study, we performed an umbrella review of the association of phytonutrient supplements (PNSs) with biomarkers of cardiovascular disease. Relevant published systematic reviews and meta-analyses of clinical trials were identified by searching PubMed, Embase, and Cochrane Library until July 4, 2020. Weighted mean differences (WMDs) and 95% confidence intervals (CIs) for summarized effects and I2 statistics of heterogeneity were extracted from individual studies or reanalyzed using a random-effects model. Of the 50 included studies, pooled effects of PNSs on blood pressure, lipid profiles, and glycemic control were reported in 16, 25, and 14 articles, respectively. The findings appeared to be highly heterogeneous among individual trials of included systematic reviews and meta-analyses. Ginger (WMD = -6.36 mmHg, 95% CI = -11.27, -1.46) and Hibiscus sabdariffa (WMD = -7.58 mmHg, 95% CI = -9.69, -5.46) were associated with lowered systolic blood pressure, whereas Aloe vera, Nigella sativa, and spirulina were associated with beneficial effects on both lipid profiles and glycemic control. In summary, this umbrella review has provided up-to-date evidence for the effect of PNSs on biomarkers related to hypertension, dyslipidemia, and diabetes. The results must be interpreted with caution due to potential heterogeneity.
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Affiliation(s)
- Tung Hoang
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Republic of Korea
| | - Jeongseon Kim
- Department of Cancer Biomedical Science, National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Republic of Korea
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Colombo R, Papetti A. Decaffeinated coffee and its benefits on health: focus on systemic disorders. Crit Rev Food Sci Nutr 2020; 61:2506-2522. [PMID: 32551832 DOI: 10.1080/10408398.2020.1779175] [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: 10/24/2022]
Abstract
The current literature has mainly focused on benefits and risks deriving from the consumption of caffeinated coffee and its implications for inflammation, cardiovascular diseases, neurodegenerative disorders, and cancer. Today, data about the role of caffeine in many disorders are controversial and the attention has increasingly focused on decaffeinated coffee and its non-caffeine compounds, which could have mainly beneficial effects. In fact, coffee phenolic compounds not only exhibit well-known antioxidant properties, but they can also antagonize some negative effects of caffeine, for example in inflammatory pathway and in glucose metabolism and homeostasis. In this review, we consider the literature of the last two decades and critically discuss the effects of decaffeinated coffee compounds on systemic disorders, mainly inflammation, cardiovascular diseases, hepatic dysfunctions, and cancer.
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Affiliation(s)
| | - Adele Papetti
- Department of Drug Sciences, University of Pavia, Pavia, Italy
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Morvaridi M, Rayyani E, Jaafari M, Khiabani A, Rahimlou M. The effect of green coffee extract supplementation on cardio metabolic risk factors: a systematic review and meta-analysis of randomized controlled trials. J Diabetes Metab Disord 2020; 19:645-660. [PMID: 32550217 DOI: 10.1007/s40200-020-00536-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Accepted: 04/28/2020] [Indexed: 02/07/2023]
Abstract
Purpose Considering the present controversies on the association between green coffee supplementation and cardio metabolic risk factors, this systematic review and meta-analysis was conducted to evaluate the effect of green coffee supplementation on cardio metabolic risk factors. Method A systematic literature search was performed throughout the PubMed, Embase, Scopus, and Web of Science databases up to October 2019. As a result, all randomized controlled trials over the effect of green coffee supplementation on fasting blood sugar (FBS), insulin, triglyceride, high-density lipoprotein (HDL), low-density lipoprotein (LDL), C - reactive protein (CRP), and homeostatic model assessment for insulin resistance (HOMA-IR) in adults were examined. Data were extracted from the relevant studies and analyzed using the random-effect or pooled model and standardized mean difference (SMD) with 95% confidence interval (CI). Results After excluding the irrelevant articles, 27 studies were included in the final analysis. Pooled results revealed that green coffee supplementation significantly reduced FBS (WMD = -2.28, 95% CI: -4.49 to -0.07, P = 0.043), insulin (WMD = -0.53, 95% CI: -0.93 to -0.14, P = 0.008), and triglyceride (WMD = -9.28, 95% CI: -14.93 to - 3.63, P = 0.001). Furthermore, green coffee supplementation increased the HDL levels (WMD = 1.33, 95% CI: 0.08 to 2.58, P = 0.037). However, the changes in HOMA-IR, LDL, and CRP levels were not significant (P > 0.05). Conclusion This meta-analysis indicated that green coffee supplementation significantly decreased FBS, insulin, and triglyceride, but improved HDL. No statistically significant improvement was found in HOMA-IR, LDL, and CRP indices following the green coffee supplementation.
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Affiliation(s)
- Mehrnaz Morvaridi
- School of Paramedicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Elham Rayyani
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Malihe Jaafari
- Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Alireza Khiabani
- School of medicine, Bam University of Medical Sciences, Bam, Iran
| | - Mehran Rahimlou
- Student Research Committee, School of medicine, Bam University of Medical Sciences, Bam, Iran
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12
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Ding F, Ma B, Nazary-Vannani A, Kord-Varkaneh H, Fatahi S, Papageorgiou M, Rahmani J, Poursoleiman F, Júnior Borges do Nascimento I, Li H, Han D, Wang D. The effects of green coffee bean extract supplementation on lipid profile in humans: A systematic review and meta-analysis of randomized controlled trials. Nutr Metab Cardiovasc Dis 2020; 30:1-10. [PMID: 31748178 DOI: 10.1016/j.numecd.2019.10.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2019] [Revised: 09/30/2019] [Accepted: 10/02/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND AND AIM This systematic review and meta-analysis aimed to assess the effects of green coffee bean extract (GCBE) supplementation on lipid profile in adults. METHODS AND RESULTS The PubMed/Medline, Scopus, Web of sciences, and Google Scholar were systematically searched for randomized controlled trials available in English and published before February 2019. The meta-analysis was conducted using fixed effects models, and between-study heterogeneity was assessed by Cochran's Q test and I2. A total of 17 effect sizes were included in the meta-analysis. Combined effect sizes on serum total cholesterol concentrations revealed significant effects of GCBE supplementation on serum total cholesterol [weighted mean difference (WMD): -4.51 mg/dL, 95% confidence interval (CI): -6.89, -2.12, p < 0.001], low density lipoprotein-cholesterol (LDL-C) (WMD: -4.38 mg/dL, 95% CI: -6.44, -2.31, p < 0.001), and high density lipoprotein-cholesterol (HDL-C) (WMD: 2.63 mg/dL, 95% CI: 2.20, 3.07, p < 0.001) compared to controls. Nevertheless, no significant changes were observed in serum triglycerides levels (WMD: -4.34 mg/dL, 95% CI: -9.00, 0.32, p = 0.068). CONCLUSION The evidence from available studies suggests that the GCBE supplementation leads to significant reductions in total cholesterol, HDL-C, and LDL-C levels, and has modest, but, non-significant effects on triglycerides levels.
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Affiliation(s)
- Feng Ding
- Emergency Department, Harbin fifth hospital, Harbin, Heilongjiang, 150040, China
| | - Baoping Ma
- Cardiovascular Medicine Department, Harbin Fifth Hospital, Harbin, Heilongjiang, 150040, China
| | - Ali Nazary-Vannani
- Department of Cellular and Molecular Nutrition, Students' Scientific Research Center (SSRC) School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Iran
| | - Hamed Kord-Varkaneh
- Department of Clinical Nutrition and Dietetics, Student Research Committee, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somaye Fatahi
- Student Research Committee, Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
| | - Maria Papageorgiou
- Division of Bone Diseases, Department of Internal Medicine Specialties, Geneva University Hospitals & Faculty of Medicine, Geneva 14, Switzerland
| | - Jamal Rahmani
- Department of Clinical Nutrition and Dietetics, Student Research Committee, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Faezeh Poursoleiman
- Department of Clinical Nutrition and Dietetics, Student Research Committee, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Hui Li
- Cardiovascular Medicine Department, Harbin Fifth Hospital, Harbin, Heilongjiang, 150040, China
| | - Dongyang Han
- Cardiovascular Medicine Department, Harbin Fifth Hospital, Harbin, Heilongjiang, 150040, China
| | - Dongmei Wang
- Cardiovascular Medicine Department, Harbin Fifth Hospital, Harbin, Heilongjiang, 150040, China.
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