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Rohani P, Rasoulizadeh Z, Tavakoli S, Alimadadi H, Vahidshahi K, Fatahi S, Sohouli MH, Guimarães NS. Effect of a carbohydrate-restricted diet on weight loss in overweight and obese pediatric population: a meta-analysis of randomized controlled trials. Diabetol Metab Syndr 2024; 16:210. [PMID: 39210411 PMCID: PMC11360302 DOI: 10.1186/s13098-024-01458-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024] Open
Abstract
BACKGROUND There are conflicting findings regarding the effect of low-carbohydrate diets on obesity-related factors. This study aimed to investigate the effect of a carbohydrate-restricted (CR) diet on changes in anthropometric indicators of adiposity and fat distribution in pediatrics populations. METHODS A systematic search was conducted in PubMed/MEDLINE, Web of Science, Scopus, and Embase electronic databases using predefined keywords to identify all randomized controlled trials examining the effects of CR on obesity-related factors. The pooled weighted mean difference (WMD) and 95% confidence intervals (CI) were calculated using a random-effects model. RESULTS Findings from 11 studies demonstrated significant reductions in weight (WMD: -2.31 kg; 95% CI: -4.44, -0.18), BMI (WMD:-1.08 kg/m2; 95% CI: -1.91, -0.26), and fat mass (WMD: -1.43%; 95% CI: -2.43 to -0.43) as well as a significant increase in adiponectin levels (WMD: 0.74 ng/ml; 95% CI: 0.02, 1.47) in the CR diet group compared to the control group. However, no significant effect was observed on BMI z-score (WMD:-0.10; 95% CI: -0.21, 0.01), waist circumference (WMD:-3.03 cm; 95% CI: -6.57, 0.51) or leptin levels (WMD: -0.82 ng/ml; 95% CI: -2.26, 0.61). Stratified analysis rrevealed a greater effect of CR on weight and BMI reduction in interventions ≤ 12 weeks and in very low-carbohydrate diets. CONCLUSIONS In conclusion, it appears that CR diet, along with other lifestyle factors, can lead to significant improvements in weight loss on pediatrics with obesity/overweight.
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Affiliation(s)
- Pejman Rohani
- Pediatric Gastroenterology and Hepatology Research Center, Pediatrics Centre of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Rasoulizadeh
- School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sogand Tavakoli
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hosein Alimadadi
- Pediatric Gastroenterology and Hepatology Research Center, Pediatrics Centre of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Koroush Vahidshahi
- Department of Pediatrics, School of Medicine, Shahid Modarres Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Somaye Fatahi
- Department of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Hassan Sohouli
- Pediatric Gastroenterology and Hepatology Research Center, Pediatrics Centre of Excellence, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
| | - Nathalia Sernizon Guimarães
- Department of Nutrition, School of Nursing, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
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Jannati N, Mohammadi-Faez R, Mahmoodi MR, Azadbakht L. Association between quality and quantity of carbohydrate intake with selected anthropometric indices among primary school girls in Kerman city, Iran: a cross-sectional study. BMC Pediatr 2024; 24:267. [PMID: 38658854 PMCID: PMC11040773 DOI: 10.1186/s12887-024-04739-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 04/04/2024] [Indexed: 04/26/2024] Open
Abstract
BACKGROUND The school-age is a crucial period of physical and cognitive growth, which requires an assessment of dietary intake and its influence on body weight and height. This study aims to determine the association between the quality and quantity of carbohydrate intake with selected anthropometric indices in primary school girls in Kerman City, Iran. METHODS This cross-sectional study was conducted on 330 primary school girls ages 6-12 years in Kerman. We used a validated and reliable dish-based 185-item food frequency questionnaire to evaluate people's food intake. We assessed the amount of carbohydrates in children's diets as the percentage of daily calories and grams per day. We used dietary fiber intake (grams/day), the glycemic load, the ratio of whole grain to total grain, and the ratio of solid carbohydrates to total carbohydrates to assess carbohydrate quality. Height, weight, and arm circumference were measured. We calculated body mass index (BMI) by dividing the weight in kilograms by the height in centimeters squared. We used the World Health Organization z-scores charts for girls 5 to 19 years old to assess z-scores for BMI-for-age (BAZ), height-for-age (HAZ), and weight-for-age (WAZ). Socioeconomic status and physical activity were assessed. We used ANOVA and ANCOVA statistical tests to assess the association between anthropometric indices and carbohydrate quantity and quality parameters. RESULTS Participants with the highest amount of carbohydrate intake had significantly higher anthropometric indices, including arm circumference, BMI-for-age z score (BAZ), and Height-for-age z score (HAZ) (p < 0.001, p < 0.001, and p = 0.009, respectively). With the increase in glycemic load (GL) and dietary fiber intake, anthropometric indices including arm circumference (GL: p < 0.001, Fiber: p < 0.001), BAZ (GL: p < 0.001, Fiber: P < 0.001), and HAZ (GL: P = 0.009, Fiber: p < 0.001) increased significantly. CONCLUSIONS We concluded that there was a positive association between the amount of carbohydrate intake and anthropometric indices (MUAC, BAZ, and HAZ). Also, with the increase in glycemic load and dietary fiber intake, the anthropometric indices including MUAC, BAZ, and HAZ increased.
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Affiliation(s)
- Nooshin Jannati
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Reyhaneh Mohammadi-Faez
- Department of Nutrition, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran
| | - Mohammad Reza Mahmoodi
- Physiology Research Center, Institute of Neuropharmacology & Department of Nutrition, Faculty of Public Health, Kerman University of Medical Sciences, Kerman, Iran.
| | - Leila Azadbakht
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), Tehran, Iran.
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Park J, Kim OY. Macronutrients modified dietary intervention in the management of overweight/obese children and adolescents: a systematic review. Clin Exp Pediatr 2024; 67:191-200. [PMID: 37448128 PMCID: PMC10990656 DOI: 10.3345/cep.2023.00262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Revised: 06/02/2023] [Accepted: 07/10/2023] [Indexed: 07/15/2023] Open
Abstract
The prevalence of obesity in adults and children is rapidly increasing worldwide. Obesity is among the main causes of chronic diseases and various problems, including economic consequences and they can also be affected by genetic, environmental, psychological, and socioeconomic factors. Dietary modification is a well-known and important factor in weight control, in particular, dietary macronutrient composition, food selection, dietary patterns, and energy restriction can affect weight reduction. Therefore, this systematic review aims to provide basic evidence for identifying the optimal macronutrient composition for managing obesity in Korean children and adolescents. We searched literature through an international database, studies were selected using our eligibility criteria and quality was assessed via a risk of bias tool. In our results, several studies have demonstrated that dietary macronutrient modifications affect body composition and metabolic markers in children and adolescents. In contrast, hypocaloric diets, regardless of macronutrient composition, are reportedly effective for weight loss in obese children. However, these findings were based on intervention studies that examined the association between dietary macronutrient composition and obesity in non-Korean children and adolescents. Therefore, in the future, more intervention studies are needed to elucidate this relationship and evidence between macronutrients and obesity in Korean children and adolescents.
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Affiliation(s)
- Jihyun Park
- Clinical Nutrition Major, Department of Health Science, Graduate School of Dong-A University, Busan, Korea
| | - Oh Yoen Kim
- Clinical Nutrition Major, Department of Health Science, Graduate School of Dong-A University, Busan, Korea
- Department of Food Science and Nutrition, Dong-A University, Busan, Korea
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Kalaitzopoulou I, Theodoridis X, Kotzakioulafi E, Evripidou K, Chourdakis M. The Effectiveness of a Low Glycemic Index/Load Diet on Cardiometabolic, Glucometabolic, and Anthropometric Indices in Children with Overweight or Obesity: A Systematic Review and Meta-Analysis. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1481. [PMID: 37761441 PMCID: PMC10528374 DOI: 10.3390/children10091481] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 08/26/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023]
Abstract
(1) Background: This systematic review and meta-analysis aims to evaluate the impact of a low glycemic index (LGI) and low glycemic load (LGL) diet on children with overweight and obesity, analyzing any changes in anthropometric, cardiometabolic, and glucometabolic parameters. (2) Methods: Three electronic databases (PubMed, Scopus, CENTRAL), as well as clinical trial registries and reference lists of the included studies, were searched for eligible randomized control trials (RCTs). Two independent reviewers performed the screening of the studies, data extraction, and risk of bias assessment. Mean difference (MD) and 95% confidence intervals (CI) using a random effects model were calculated for each outcome. (3) Results: Eleven RCTs (n = 634) examining the effect of LGI diet versus control were identified. The synthesized data provided from the RCTs indicate no difference between intervention and control groups regarding primary outcomes (body weight (MD: -0.14; 95% CI -1.93 to 1.64, 5 trials), body mass index (BMI) (MD: -0.31; 95% CI -0.85 to 0.23, 6 trials), BMI z-score (MD: -0.03; 95% CI -0.09 to 0.02, 5 trials), and waist circumference (MD: -0.52; 95% CI -2.35 to 1.31, 5 trials)) and other measures of cardiometabolic and glucometabolic parameters. The majority of trials were classified as "some concerns". (4) Conclusions: LGI and LGL diets do not seem to be associated with changes in adiposity, cardiometabolic or glucometabolic markers in children with overweight or obesity. Further research comparing the LGI diet to a high glycemic index diet, with proper methodological standards, is required to clarify the benefits of a LGI diet in this population.
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Affiliation(s)
- Ioustini Kalaitzopoulou
- Laboratory of Hygiene, Social and Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.K.); (X.T.); (E.K.); (K.E.)
| | - Xenophon Theodoridis
- Laboratory of Hygiene, Social and Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.K.); (X.T.); (E.K.); (K.E.)
| | - Evangelia Kotzakioulafi
- Laboratory of Hygiene, Social and Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.K.); (X.T.); (E.K.); (K.E.)
- Diabetes Center, 1st Propaedeutic Department of Internal Medicine, Medical School, “AHEPA” Hospital, Aristotle University of Thessaloniki, 54621 Thessaloniki, Greece
| | - Kleo Evripidou
- Laboratory of Hygiene, Social and Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.K.); (X.T.); (E.K.); (K.E.)
| | - Michail Chourdakis
- Laboratory of Hygiene, Social and Preventive Medicine and Medical Statistics, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (I.K.); (X.T.); (E.K.); (K.E.)
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Maffeis C, Olivieri F, Valerio G, Verduci E, Licenziati MR, Calcaterra V, Pelizzo G, Salerno M, Staiano A, Bernasconi S, Buganza R, Crinò A, Corciulo N, Corica D, Destro F, Di Bonito P, Di Pietro M, Di Sessa A, deSanctis L, Faienza MF, Filannino G, Fintini D, Fornari E, Franceschi R, Franco F, Franzese A, Giusti LF, Grugni G, Iafusco D, Iughetti L, Lera R, Limauro R, Maguolo A, Mancioppi V, Manco M, Del Giudice EM, Morandi A, Moro B, Mozzillo E, Rabbone I, Peverelli P, Predieri B, Purromuto S, Stagi S, Street ME, Tanas R, Tornese G, Umano GR, Wasniewska M. The treatment of obesity in children and adolescents: consensus position statement of the Italian society of pediatric endocrinology and diabetology, Italian Society of Pediatrics and Italian Society of Pediatric Surgery. Ital J Pediatr 2023; 49:69. [PMID: 37291604 DOI: 10.1186/s13052-023-01458-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/18/2023] [Indexed: 06/10/2023] Open
Abstract
This Position Statement updates the different components of the therapy of obesity (lifestyle intervention, drugs, and surgery) in children and adolescents, previously reported in the consensus position statement on pediatric obesity of the Italian Society of Pediatric Endocrinology and Diabetology and the Italian Society of Pediatrics. Lifestyle intervention is the first step of treatment. In children older than 12 years, pharmacotherapy is the second step, and bariatric surgery is the third one, in selected cases. Novelties are available in the field of the medical treatment of obesity. In particular, new drugs demonstrated their efficacy and safety and have been approved in adolescents. Moreover, several randomized control trials with other drugs are in process and it is likely that some of them will become available in the future. The increase of the portfolio of treatment options for obesity in children and adolescents is promising for a more effective treatment of this disorder.
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Affiliation(s)
- Claudio Maffeis
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Section of Pediatric Diabetes and Metabolism, University of Verona, Verona, Italy
| | - Francesca Olivieri
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Section of Pediatric Diabetes and Metabolism, University of Verona, Verona, Italy.
| | - Giuliana Valerio
- Department of Movement Sciences and Wellbeing, Parthenope University of Naples, Naples, Italy
| | - Elvira Verduci
- Deparment of Pediatrics, Department of Health Science, Vittore Buzzi Children's Hospital, University of Milan, Milan, Italy
| | - Maria Rosaria Licenziati
- Department of Neurosciences, Neuro-Endocrine Diseases and Obesity Unit, Santobono-Pausilipon Children's Hospital, Naples, Italy
| | - Valeria Calcaterra
- Department of Pediatrics, Vittore Buzzi Children's Hospital, Milan, Italy
- Department of Internal Medicine and Therapeutics, University of Pavia, Pavia, Italy
| | - Gloria Pelizzo
- Department of Pediatric Surgery, Vittore Buzzi Children's Hospital, Milan, Italy
| | - Mariacarolina Salerno
- Department of Traslational Medical Sciences, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | - Annamaria Staiano
- Department of Traslational Medical Sciences, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | | | - Raffaele Buganza
- Pediatric Endocrinology Unit, Department of Public Health and Pediatric Sciences, University of Turin, Turin, Italy
| | - Antonino Crinò
- Autoimmune Endocrine Diseases Unit, Bambino Gesù Children Hospital, IRCCS, Rome, Italy
| | | | - Domenico Corica
- Department of Human Pathology of Adulthood and Childhood, University of Messina, Messina, Italy
| | - Francesca Destro
- Department of Pediatric Surgery, Vittore Buzzi Children's Hospital, Milan, Italy
| | - Procolo Di Bonito
- Department of Internal Medicine, S. Maria Delle Grazie Hospital, Naples, Pozzuoli, Italy
| | - Mario Di Pietro
- Pediatric and Neonatal Unit, Hospital of Teramo and Atri, Teramo, Italy
| | - Anna Di Sessa
- Department of Woman, Child and General and Specialized Surgery, University of Campania L. Vanvitelli, Naples, Italy
| | - Luisa deSanctis
- Department of Sciences of Public Health and Pediatrics, University of Turin, Turin, Italy
| | - Maria Felicia Faienza
- Department of Precision and Regenerative Medicine and Ionan Area, University of Bari, Bari, Italy
| | | | - Danilo Fintini
- Refernce Center for Prader Willi Syndrome, Endocrinology and Diabetology Unit, Bambino Gesù Children Hospital, IRCCS, Rome, Italy
| | - Elena Fornari
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Section of Pediatric Diabetes and Metabolism, University of Verona, Verona, Italy
| | | | - Francesca Franco
- Pediatric Department, Azienda Sanitaria Universitaria del Friuli Centrale, Hospital of Udine, Udine, Italy
| | - Adriana Franzese
- Department of Traslational Medical Sciences, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | - Lia Franca Giusti
- Italian Society for Pediatric Endocrinology and Diabetology (SIEDP), Lucca, Italy
| | - Graziano Grugni
- Division of Auxology, Istituto Auxologico Italiano, IRCCS, Verbania, Italy
| | - Dario Iafusco
- Department of Woman, Child and General and Specialized Surgery, University of Campania L. Vanvitelli, Naples, Italy
| | - Lorenzo Iughetti
- Department of Medical and Surgical Sciences of Mother, Children and Adults, Pediatric Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Riccardo Lera
- Italian Society for Pediatric Endocrinology and Diabetology (SIEDP), Alessandria, Italy
| | | | - Alice Maguolo
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Section of Pediatric Diabetes and Metabolism, University of Verona, Verona, Italy
| | - Valentina Mancioppi
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Section of Pediatric Diabetes and Metabolism, University of Verona, Verona, Italy
| | - Melania Manco
- Research Area for Multifactorial Diseases, Children's Hospital Bambino Gesù, Rome, Italy
| | | | - Anita Morandi
- Department of Surgery, Dentistry, Pediatrics and Gynecology, Section of Pediatric Diabetes and Metabolism, University of Verona, Verona, Italy
| | - Beatrice Moro
- UOSD Diabetology, Complesso Ai Colli, AULSS 6 Euganea, Padua, Italy
| | - Enza Mozzillo
- Department of Traslational Medical Sciences, Section of Pediatrics, University of Naples Federico II, Naples, Italy
| | - Ivana Rabbone
- Division of Pediatrics, Department of Health Sciences, University of Piemonte Orientale, Novara, Italy
| | - Paola Peverelli
- Department of Pediatrics and Gynecology, Hospital of Belluno, Belluno, Italy
| | - Barbara Predieri
- Department of Medical and Surgical Sciences of Mother, Children and Adults, Pediatric Unit, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Stefano Stagi
- Department of Health Sciences, University of Florence, Meyer Children's Hospital IRCCS, Florence, Italy
| | - Maria Elisabeth Street
- Department of Medicine and Surgery, Unit of Paediatrics, University of Parma, University Hospital of Parma, Parma, Italy
| | - Rita Tanas
- Italian Society for Pediatric Endocrinology and Diabetology (SIEDP), Ferrara, Italy
| | - Gianluca Tornese
- Institute for Maternal and Child Health, IRCCS "Burlo Garofolo", Trieste, Italy
| | - Giuseppina Rosaria Umano
- Department of Woman, Child and General and Specialized Surgery, University of Campania L. Vanvitelli, Naples, Italy
| | - Malgorzata Wasniewska
- Department of Human Pathology of Adulthood and Childhood, University of Messina, Messina, Italy
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Hampl SE, Hassink SG, Skinner AC, Armstrong SC, Barlow SE, Bolling CF, Avila Edwards KC, Eneli I, Hamre R, Joseph MM, Lunsford D, Mendonca E, Michalsky MP, Mirza N, Ochoa ER, Sharifi M, Staiano AE, Weedn AE, Flinn SK, Lindros J, Okechukwu K. Clinical Practice Guideline for the Evaluation and Treatment of Children and Adolescents With Obesity. Pediatrics 2023; 151:e2022060640. [PMID: 36622115 DOI: 10.1542/peds.2022-060640] [Citation(s) in RCA: 277] [Impact Index Per Article: 277.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/16/2022] [Indexed: 01/10/2023] Open
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7
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Skinner AC, Staiano AE, Armstrong SC, Barkin SL, Hassink SG, Moore JE, Savage JS, Vilme H, Weedn AE, Liebhart J, Lindros J, Reilly EM. Appraisal of Clinical Care Practices for Child Obesity Treatment. Part I: Interventions. Pediatrics 2023; 151:190447. [PMID: 36622110 DOI: 10.1542/peds.2022-060642] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/16/2022] [Indexed: 01/10/2023] Open
Abstract
The objective of this technical report is to provide clinicians with evidence-based, actionable information upon which to make assessment and treatment decisions for children and adolescents with obesity. In addition, this report will provide an evidence base to inform clinical practice guidelines for the management and treatment of overweight and obesity in children and adolescents. To this end, the goal of this report was to identify all relevant studies to answer 2 overarching key questions: (KQ1) "What are clinically based, effective treatments for obesity?" and (KQ2) "What is the risk of comorbidities among children with obesity?" See Appendix 1 for the conceptual framework and a priori key questions.
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Affiliation(s)
- Asheley C Skinner
- Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina
| | - Amanda E Staiano
- Louisiana State University Pennington Biomedical Research Center, Baton Rouge, Louisiana
| | - Sarah C Armstrong
- Departments of Pediatrics and Population Health Sciences, Duke Clinical Research Institute, Duke University, Durham, North Carolina
| | - Shari L Barkin
- Children's Hospital of Richmond at Virginia Commonwealth University, Richmond, Virginia
| | - Sandra G Hassink
- Medical Director, American Academy of Pediatrics, Institute for Healthy Childhood Weight, Wilmington, Delaware
| | - Jennifer E Moore
- Institute for Medicaid Innovation, University of Michigan Medical School, Ann Arbor, Michigan
| | - Jennifer S Savage
- Center for Childhood Obesity Research, Pennsylvania State University, Department of Nutritional Sciences, Pennsylvania State University, University Park, Pennsylvania
| | - Helene Vilme
- Department of Population Health Sciences, Duke University School of Medicine, Durham, North Carolina
| | - Ashley E Weedn
- Department of Pediatrics, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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8
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Jakobsen DD, Brader L, Bruun JM. Effects of foods, beverages and macronutrients on BMI z-score and body composition in children and adolescents: a systematic review and meta-analysis of randomized controlled trials. Eur J Nutr 2023; 62:1-15. [PMID: 35902429 DOI: 10.1007/s00394-022-02966-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Accepted: 07/11/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE A healthy diet is fundamental for healthy growth and for future disease prevention. However, scientific consensus on how to compose healthy diets for children has not been established. Therefore, a systematic review and meta-analysis was performed to investigate if an independent effect exists between foods, beverages or the composition of macronutrients and body composition in children and adolescents. METHODS A systematic search was performed in four databases up to July 2021. A systematic review of randomized controlled studies (RCTs) and meta-analyses were carried out by extracting mean difference (MDs) and standard deviation (SD) and performed using the random effect model. RESULTS Sixteen RCTs met inclusion criteria. Beyond dairy, sugar-sweetened beverages and macronutrient composition, no trials were identified for other food groups. Based on five RCTs (n:5), a higher-dairy diet was found to reduce body fat percentage - 0.47 [- 0.92, - 0.03] (p = 0.04). A higher-dairy diet was also found to increase lean body mass (kg) 0.34 [0.06, 0.62] (p = 0.02) (n:2), but did not affect BMI z-score - 0.05 [- 0.16, 0.06] (p = 0.39) (n:4). Substituting sugar-sweetened beverage with non-caloric beverages or flavored milk reduced body fat percentage (- 0.70 [- 0.78, - 0.62] (p < 0.001)) (n:3) but did not change BMI z-score (- 0.05 [- 0.20, 0.09] (p = 0.48)) (n:2). No significant effects were found between different macronutrient compositions and BMI z-score or body fat percentage. CONCLUSION Changes in diet from low to higher-dairy consumption and from sugar-sweetened beverages to non-caloric beverages or flavored milk resulted in favorable changes in body composition among children and adolescents. Eligible studies investigating other foods are lacking. TRIAL REGISTRATION PROSPERO registration number (CRD42020173201).
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Affiliation(s)
- Dorthe Dalstrup Jakobsen
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Hedeager 3, 2. Floor, 8200, Aarhus N, Denmark. .,Department of Clinical Medicine, University of Aarhus, Aarhus, Denmark. .,Danish National Center for Obesity, Aarhus, Denmark.
| | - Lea Brader
- Arla Innovation Centre, Global Nutrition, Agro Food Park 19, 8200, Aarhus N, Denmark
| | - Jens Meldgaard Bruun
- Steno Diabetes Center Aarhus, Aarhus University Hospital, Hedeager 3, 2. Floor, 8200, Aarhus N, Denmark.,Department of Clinical Medicine, University of Aarhus, Aarhus, Denmark.,Danish National Center for Obesity, Aarhus, Denmark.,Medical Department, Randers Regional Hospital, Randers, Denmark.,Department of Nutrition, Exercise, and Sports, University of Copenhagen, Copenhagen, Denmark
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9
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Hassapidou M, Duncanson K, Shrewsbury V, Ells L, Mulrooney H, Androutsos O, Vlassopoulos A, Rito A, Farpourt N, Brown T, Douglas P, Ramos Sallas X, Woodward E, Collins C. EASO and EFAD Position Statement on Medical Nutrition Therapy for the Management of Overweight and Obesity in Children and Adolescents. Obes Facts 2022; 16:29-52. [PMID: 36349767 PMCID: PMC9890183 DOI: 10.1159/000527540] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 09/21/2022] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION This position statement on medical nutrition therapy in the management of overweight or obesity in children and adolescents was prepared by an expert committee convened by the European Association for the Study of Obesity (EASO) and developed in collaboration with the European Federation of the Associations of Dietitians (EFAD). METHODS It is based on the best evidence available from systematic reviews of randomized controlled trials on child and adolescent overweight and obesity treatment and other relevant peer-reviewed literature. RESULTS Multicomponent behavioural interventions are generally considered to be the gold standard treatment for children and adolescents living with obesity. The evidence presented in this position statement confirms that dietary interventions can effectively improve adiposity-related outcomes. Dietary strategies should focus on the reduction of total energy intake through promotion of food-based guidelines that target modification of usual eating patterns and behaviours. These should target increasing intakes of nutrient-rich foods with a lower energy density, specifically vegetables and fruits, and a reduction in intakes of energy-dense nutrient-poor foods and beverages. In addition, higher intensity, longer duration treatments, delivered by interventionists with specialized dietetic-related skills and co-designed with families, are associated with greater treatment effects. DISCUSSION Such interventions should be resourced adequately so that they can be implemented in a range of settings and in different formats, including digital or online delivery, to enhance accessibility.
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Affiliation(s)
- Maria Hassapidou
- Department of Nutritional Sciences & Dietetics, International Hellenic University, Thessaloniki, Greece
- ESDN Obesity, European Federation of the Associations of Dieticians, Naarden, The Netherlands
| | - Kerith Duncanson
- School of Medicine and Public Health, The University of Newcastle Australia, Callaghan, New South Wales, Australia
| | - Vanessa Shrewsbury
- School of Health Sciences, College of Health, Medicine and Wellbeing, The University of Newcastle Australia, Callaghan, New South Wales, Australia
| | - Louisa Ells
- Obesity Institute, School of Health, Leeds Beckett University, Leeds, UK
| | - Hilda Mulrooney
- ESDN Obesity, European Federation of the Associations of Dieticians, Naarden, The Netherlands
- Department of Life Sciences, Pharmacy and Chemistry, SEC Faculty, Kingston University London, Kingston upon Thames, UK
| | - Odysseas Androutsos
- ESDN Obesity, European Federation of the Associations of Dieticians, Naarden, The Netherlands
- Department of Nutrition-Dietetics, University of Thessaly, Trikala, Greece
| | - Antonis Vlassopoulos
- ESDN Obesity, European Federation of the Associations of Dieticians, Naarden, The Netherlands
- Department of Food Science & Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Ana Rito
- National Institute of Health Ricardo Jorge I.P., Lisbon, Portugal
| | - Nathalie Farpourt
- Obesity Prevention and Care Program Contrepoids, Service of Endocrinology, Diabetology and Therapeutic Education, Department of Medicine, University Hospitals of Geneva and University of Geneva, Geneva, Switzerland
| | - Tamara Brown
- Applied Obesity Research Centre in the School of Health, Leeds Beckett University, Leeds, UK
| | - Pauline Douglas
- Nutrition Innovation Center for Food and Health (NICHE), School of Biomedical Sciences, Ulster University, Coleraine, UK
| | | | - Euan Woodward
- European Association for the Study of Obesity, Teddington, UK
| | - Clare Collins
- School of Health Sciences, College of Health, Medicine and Wellbeing, The University of Newcastle Australia, Callaghan, New South Wales, Australia
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10
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Seral-Cortes M, De Miguel-Etayo P, Zapata P, Miguel-Berges ML, Moreno LA. Effectiveness and process evaluation in obesity and type 2 diabetes prevention programs in children: a systematic review and meta-analysis. BMC Public Health 2021; 21:348. [PMID: 33579237 PMCID: PMC7881469 DOI: 10.1186/s12889-021-10297-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 01/20/2021] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Obesity in children is one of the most severe public health challenges of the current century and Type 2 Diabetes Mellitus (T2DM) frequency is also escalating. More so, the importance of process evaluation (PE) in complex interventions is increasingly recognized. The present review, aims to identify the effectiveness in terms of body composition parameters in a generation of articles to prevent obesity and T2DM in children. We hypothesise that those studies reporting PE applying the latest implementation guidelines suggested by the researchers would potentially show positive changes in body composition compared to those not reporting it. Additionally, we will evaluate the implementation degree of PE in those articles considering it and describe the PE subcomponents. Lastly, we aim to assess the intervention target used and its results. METHODS A literature review was performed in parallel by 2 independent reviewers. A final number of 41 studies were selected for inclusion criteria. RESULTS Meta-analysis of BMI and zBMI found non-significant effects of the proposed interventions. Sub-group analysis revealed only a significant effect in studies which performed PE. Moreover, PE was reported in 42% effective studies and 57% non-effective studies. Fidelity and satisfaction were the most implemented PE subcomponents, although there was a generally low grade of PE use (7/41). The highest proportion of effectiveness (83%) was shown in interventions of physical activity alone while the intervention most used was 3-arm target (diet, PA and BS). CONCLUSIONS Overall, obesity and T2DM prevention studies included in this review are not effective in terms of BMI and zBMI. Those studies performing PE reported to be effective in terms of BMI, while studies not reporting PE did not have positive results in terms of BMI and zBMI. In addition, none of the intervention studies included all PE indicators and most studies, which included PE in their interventions, did not provide full report of the PE components, according to the guidelines used for the present review. PROSPERO registration number: CRD42018093667.
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Affiliation(s)
- M Seral-Cortes
- Growth, Exercise, NUtrition and Development (GENUD) Research Group, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria, Aragón (IIS Aragón), Universidad de Zaragoza, 50009, Zaragoza, Spain
- Department of Psychiatry and Nursing, Faculty of Health Sciences, Universidad de Zaragoza, Zaragoza, Spain
| | - P De Miguel-Etayo
- Growth, Exercise, NUtrition and Development (GENUD) Research Group, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria, Aragón (IIS Aragón), Universidad de Zaragoza, 50009, Zaragoza, Spain.
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain.
| | - P Zapata
- Growth, Exercise, NUtrition and Development (GENUD) Research Group, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria, Aragón (IIS Aragón), Universidad de Zaragoza, 50009, Zaragoza, Spain
- Departamento de nutrición y dietética, Universidad de Antioquia, Medellín, Colombia
| | - M L Miguel-Berges
- Growth, Exercise, NUtrition and Development (GENUD) Research Group, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria, Aragón (IIS Aragón), Universidad de Zaragoza, 50009, Zaragoza, Spain
- Department of Psychiatry and Nursing, Faculty of Health Sciences, Universidad de Zaragoza, Zaragoza, Spain
| | - L A Moreno
- Growth, Exercise, NUtrition and Development (GENUD) Research Group, Instituto Agroalimentario de Aragón (IA2), Instituto de Investigación Sanitaria, Aragón (IIS Aragón), Universidad de Zaragoza, 50009, Zaragoza, Spain
- Department of Psychiatry and Nursing, Faculty of Health Sciences, Universidad de Zaragoza, Zaragoza, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III, Madrid, Spain
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11
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Ibarra-Reynoso LDR, Pisarchyk L, Pérez-Luque EL, Garay-Sevilla ME, Malacara JM. Dietary restriction in obese children and its relation with eating behavior, fibroblast growth factor 21 and leptin: a prospective clinical intervention study. Nutr Metab (Lond) 2015; 12:31. [PMID: 26379757 PMCID: PMC4570615 DOI: 10.1186/s12986-015-0027-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Accepted: 08/31/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Obesity is significant problem involving eating behavior and peripheral metabolic conditions. The effect of carbohydrate and fat restriction on appetite regulation, fibroblast growth factor 21 (FGF21) and leptin in children has not been defined. Our objective was to compare the effect of both diets. METHODS One hundred and twenty children with body mass index (BMI) higher than the equivalent of 30 kg/m(2) for an adult, as corrected for gender and age were randomly assigned to (n = 60) a low-carbohydrate (L-CHO) diet or (n = 60) a low-fat (L-F) diet for 2 months. Fifty-three (88.3 %) subjects on the low-carbohydrate-diet and 45 (75 %) on the low-fat diet completed the study. Anthropometric measures, leptin and FGF21 levels were measured before and after the intervention. Comparison of the data for both of the diet groups was carried out using the t-test for independent variables. Intragroup comparisons before and after of each of the dietary treatments were performed using ANOVA for repeated measures. Factors associated with FGF21, leptin levels and satiety, were analyzed by multiple regression. RESULTS After both of the diets, weight, leptin, food responsiveness, and enjoyment of food significantly decreased and high density lipoprotein cholesterol (HDL) increased, but FGF21 decreased. Before and after both of the interventions FGF21 was associated with triglycerides. Before the diet, satiety was associated with lower screen time (p < 0.04) and insulin levels (p < 0.05). CONCLUSIONS Both dietary restrictions improved the metabolic and hormonal parameters of obese children. FGF21 is an indicator of a beneficial metabolic response in younger children. After 2 months an adaptation of the eating behavior to food restriction was observed.
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Affiliation(s)
| | - Liudmila Pisarchyk
- Department of Medical Sciences, University of Guanajuato, Campus León. 20 de Enero 929. Col Obregón, León Gto, México 37320
| | - Elva Leticia Pérez-Luque
- Department of Medical Sciences, University of Guanajuato, Campus León. 20 de Enero 929. Col Obregón, León Gto, México 37320
| | - Ma Eugenia Garay-Sevilla
- Department of Medical Sciences, University of Guanajuato, Campus León. 20 de Enero 929. Col Obregón, León Gto, México 37320
| | - Juan Manuel Malacara
- Department of Medical Sciences, University of Guanajuato, Campus León. 20 de Enero 929. Col Obregón, León Gto, México 37320
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12
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Schwingshackl L, Hobl LP, Hoffmann G. Effects of low glycaemic index/low glycaemic load vs. high glycaemic index/ high glycaemic load diets on overweight/obesity and associated risk factors in children and adolescents: a systematic review and meta-analysis. Nutr J 2015; 14:87. [PMID: 26489667 PMCID: PMC4618749 DOI: 10.1186/s12937-015-0077-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 08/19/2015] [Indexed: 01/12/2023] Open
Abstract
The objective of the present systematic review and meta-analysis was to synthesize the available literature data investigating the effects of low glycaemic index/low glycamic load dietary regimens on anthropometric parameters, blood lipid profiles, and indicators of glucose metabolism in children and adolescents. Literature search was performed using the electronic databases MEDLINE, EMBASE, and the Cochrane Central Register of trials with restrictions to randomized controlled trials, but no limitations concerning language and publication date. Parameters taken into account were: body weight, body mass index, z-score of body mass index, fat mass, fat-free mass, height, waist cicrumference, hip circumference, waist-to-hip ratio, total cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides, diastolic and systolic blood pressure, fasting serum glucose, fasting serum insulin, HOMA-index, glycosylated haemoglobin, and C-reactive protein. Meta-analyses were performed for each parameter to assess pooled effect in terms of weighted mean differences between the post-intervention (or differences in means) of the low glycaemic index diets and the respective high glycaemic index counterparts. Data analysis was performed using the Review Manager 5.3. software. Nine studies enrolling 1.065 children or adolescents met the inclusion criteria. Compared to diets providing a high gylcaemic index, low glycaemic index protocols resulted in significantly more pronounced decreases in serum triglycerides [mean differences −15.14 mg/dl, 95 %-CI (−26.26, −4.00)] and HOMA-index [mean difference −0.70, 95 %-CI (−1.37, −0.04), fixed-effects model only]. Other parameters under investigation were not affected by either low or high glycaemic indices. The present systematic review and meta-analysis provides evidence of a beneficial effect of a low glycaemic index/load diet in children and adolescents being either overweight or obese. Regarding the limitations of this analysis, further studies adopting a homogenous design are necessary to assure the present findings. Since low glycaemic index/load regimens were not associated with a deterioration of the outcome parameters, these diets should not be categorically excluded when looking for alternatives to change lifestyle habits in this age group.
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Affiliation(s)
- Lukas Schwingshackl
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Althanstraße 14 (UZAII), A-1090, Vienna, Austria.
| | - Lisa Patricia Hobl
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Althanstraße 14 (UZAII), A-1090, Vienna, Austria.
| | - Georg Hoffmann
- Department of Nutritional Sciences, Faculty of Life Sciences, University of Vienna, Althanstraße 14 (UZAII), A-1090, Vienna, Austria.
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13
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Hanks LJ, Casazza K, Ashraf AP, Wallace S, Gutiérrez OM. Fibroblast growth factor-21, body composition, and insulin resistance in pre-pubertal and early pubertal males and females. Clin Endocrinol (Oxf) 2015; 82:550-6. [PMID: 25039824 PMCID: PMC4289452 DOI: 10.1111/cen.12552] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 04/10/2014] [Accepted: 07/07/2014] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Accumulating evidence derived primarily from animal models suggests that fibroblast growth factor-21 (FGF-21) may affect the musculoskeletal system via effects on the capacity of tissues to respond to insulin. A proportion of musculoskeletal properties and underpinnings of promoting/preventing insulin resistance are established early in the pubertal transition. Thus, the objective of this study was to test the hypothesis that insulin resistance and/or obesity will promote greater FGF-21 concentration which will be inversely associated with musculoskeletal parameters [lean mass and bone mineral content (BMC)] in pre-/early pubertal children. Given the sexual dimorphic nature of musculoskeletal development of fat mass accrual, differences by obesity status and sex were also investigated. DESIGN Cross-sectional. PATIENTS Children ages 7-12 years (n = 69, 38% male, 48% non-Hispanic black, 45% obese). MEASUREMENTS Fasting FGF-21, glucose and insulin measures were obtained. An estimate of insulin resistance was derived using the homoeostatic model assessment of insulin resistance (HOMA-IR). Body composition (BMC, lean mass and fat mass) was assessed by DXA. Multivariate regression analysis was used to evaluate the influence of FGF-21 on BMC, lean mass and HOMA-IR as dependent variables. Obesity status was established based on BMI z-score. RESULTS FGF-21 concentrations did not differ by obesity status or by sex. There was an inverse association between FGF-21 and BMC among nonobese individuals (P = 0·01) and an inverse association between FGF-21 and lean mass among females (P = 0·02), which were both independent of fat mass. FGF-21 was inversely associated with HOMA-IR in males, but not females (P = 0·04). CONCLUSIONS The existence of relationships of FGF-21 with musculoskeletal parameters and insulin resistance raises the possibility of crosstalk between these systems. These findings suggest that circulating FGF-21 may differ in its association with bone, lean mass and insulin resistance depending on sex and weight status.
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Affiliation(s)
- Lynae J. Hanks
- Children’s Hospital of Alabama, University of Alabama at Birmingham (UAB)
| | | | - Ambika P. Ashraf
- Children’s Hospital of Alabama, University of Alabama at Birmingham (UAB)
| | - Stephenie Wallace
- Children’s Hospital of Alabama, University of Alabama at Birmingham (UAB)
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Gow ML, Ho M, Burrows TL, Baur LA, Stewart L, Hutchesson MJ, Cowell CT, Collins CE, Garnett SP. Impact of dietary macronutrient distribution on BMI and cardiometabolic outcomes in overweight and obese children and adolescents: a systematic review. Nutr Rev 2014; 72:453-70. [PMID: 24920422 DOI: 10.1111/nure.12111] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
The present systematic review examined the effectiveness of weight management interventions comparing diets with varying macronutrient distributions on BMI and cardiometabolic risk factors in overweight or obese children and adolescents. A systematic search of seven databases for the period 1975-2013 identified 14 eligible randomized or quasi-randomized controlled trials conducted with 6-18-year-old subjects. Seven trials compared a low-fat (≤ 33% energy or < 40 g/day) to an isocaloric (n = 2) or ad libitum (n = 5) low-carbohydrate diet (< 20% energy or < 60 g/day). Meta-analysis indicated a greater reduction in BMI in the low-carbohydrate group immediately after dietary intervention; however, the quality of the studies was limited and cardiometabolic benefits were inconsistent. Six trials compared increased-protein diets (19-30% energy) to isocaloric standard-protein diets (15-20% energy) and one compared an increased-fat diet (40% energy) to an isocaloric standard-fat diet (27% energy); there were no differences in outcomes in these studies. Current evidence suggests that improved weight status can be achieved in overweight or obese children and adolescents irrespective of the macronutrient distribution of a reduced-energy diet. Tailoring the macronutrient content to target specific cardiometabolic risk factors, such as a low-carbohydrate diet to treat insulin resistance, may be possible, but further research is needed before specific recommendations can be made.
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Affiliation(s)
- Megan L Gow
- Institute of Endocrinology and Diabetes, The Children's Hospital at Westmead, New South Wales, Sydney, Australia; The Children's Hospital at Westmead Clinical School, University of Sydney, Sydney, New South Wales, Australia
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15
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The relationships among total body fat, bone mineral content and bone marrow adipose tissue in early-pubertal girls. BONEKEY REPORTS 2013; 2:315. [PMID: 23951544 PMCID: PMC3722749 DOI: 10.1038/bonekey.2013.49] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2012] [Accepted: 02/21/2013] [Indexed: 02/08/2023]
Abstract
Investigation of the physiologic relevance of bone marrow adipose tissue (BMAT) during growth may promote understanding of the bone-fat axis and confluence with metabolic factors. The objective of this pilot investigation was two-fold: (1) to evaluate the relationships among total body fat, bone mineral content (BMC) and femoral BMAT during childhood and underlying metabolic determinants and (2) to determine if the relationships differ by race. Participants included white and non-Hispanic black girls (n=59) ages 4–10 years. Femoral BMAT volume was measured by magnetic resonance imaging, BMC and body fat by dual-energy X-ray absorptiometry. Metabolic parameters were assessed in the fasted state. Total fat and BMC were positively associated with BMAT; however, simultaneous inclusion of BMC and body fat in the statistical model attenuated the association between BMC and BMAT. Differences in BMAT volume were observed, non-Hispanic black girls exhibiting marginally greater BMAT at age eight (P=0.05) and white girls exhibiting greater BMAT at age ten (P<0.001). Metabolic parameters conferred differential impact by race, such that, a positive association for BMAT and leptin (P=0.02) and adiponectin (P=0.002) in white girls while BMAT and insulin were inversely related in non-Hispanic black girls (P=0.008). Our findings revealed a positive relationship between BMAT, body fat and BMC, although body fat, respective to leptin, contributed partly to the relationship between BMAT and BMC. Despite large differences in total fat between non-Hispanic black and white, the relationship between BMAT and BMC was similar to white girls. However, this relationship appeared to be impacted through different mechanisms according to race.
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Macronutrient intake influences the effect of 25-hydroxy-vitamin d status on metabolic syndrome outcomes in african american girls. CHOLESTEROL 2012; 2012:581432. [PMID: 22792449 PMCID: PMC3389646 DOI: 10.1155/2012/581432] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/29/2012] [Revised: 04/23/2012] [Accepted: 04/23/2012] [Indexed: 12/25/2022]
Abstract
The objectives were to determine the effect of macronutrient modification on vitamin D status and if change in 25-hydroxy-vitamin D concentration influences components of metabolic syndrome in obese African American girls. Methods. Five-week intervention using reduced CHO (43% carbohydrate; 27% fat: SPEC) versus standard CHO (55% carbohydrate; 40% fat: STAN) eucaloric diet. Subjects were 28 obese African American females, aged 9-14 years. Dual energy X-ray absorptiometry and meal test were performed at baseline and five weeks. Results. Approximately 30% of girls had metabolic syndrome. Serum 25OHD increased in both groups at five weeks [STAN: 20.3 ± 1.1 to 22.4 ± 1.1 (P < 0.05) versus SPEC: 16.1 ± 1.0 to 16.8 ± 1.0 (P = 0.05)]. The STAN group, increased 25OHD concentration over five weeks (P < 0.05), which was positively related to triglycerides (P < 0.001) and inversely associated with total cholesterol (P < 0.001) and LDL (P < 0.001). The SPEC group, had increase in 25OHD (P = 0.05), which was positively related to fasting insulin (P < 0.001) and insulin sensitivity while inversely associated with fasting glucose (P < 0.05). The contribution of vitamin D status to metabolic syndrome parameters differs according to macronutrient intake. Improvement in 25OHD may improve fasting glucose, insulin sensitivity, and LDL; however, macronutrient intake warrants consideration.
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