Cited by 848Diet and metabolism studiesDietary Effects on HealthNutritional Studies and Diet

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Diets with High or Low Protein Content and Glycemic Index for Weight-Loss Maintenance

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Larsen, Thomas Meinert, Dalskov, Stine-Mathilde, van Baak, Marleen, Jebb, Susan A., Papadaki, Angeliki, Pfeiffer, Andreas F.H., Martinez, J. Alfredo, Handjieva-Darlenska, Teodora, Kunešová, Marie, Pihlsgård, Mats, Stender, Steen, Holst, Claus, Saris, Wim H.M., Astrup, Arne·2010·New England Journal of Medicine

Abstract

BACKGROUND: Studies of weight-control diets that are high in protein or low in glycemic index have reached varied conclusions, probably owing to the fact that the studies had insufficient power. METHODS: We enrolled overweight adults from eight European countries who had lost at least 8% of their initial body weight with a 3.3-MJ (800-kcal) low-calorie diet. Participants were randomly assigned, in a two-by-two factorial design, to one of five ad libitum diets to prevent weight regain over a 26-week period: a low-protein and low-glycemic-index diet, a low-protein and high-glycemic-index diet, a high-protein and low-glycemic-index diet, a high-protein and high-glycemic-index diet, or a control diet. RESULTS: A total of 1209 adults were screened (mean age, 41 years; body-mass index [the weight in kilograms divided by the square of the height in meters], 34), of whom 938 entered the low-calorie-diet phase of the study. A total of 773 participants who completed that phase were randomly assigned to one of the five maintenance diets; 548 completed the intervention (71%). Fewer participants in the high-protein and the low-glycemic-index groups than in the low-protein-high-glycemic-index group dropped out of the study (26.4% and 25.6%, respectively, vs. 37.4%; P=0.02 and P=0.01 for the respective comparisons). The mean initial weight loss with the low-calorie diet was 11.0 kg. In the analysis of participants who completed the study, only the low-protein-high-glycemic-index diet was associated with subsequent significant weight regain (1.67 kg; 95% confidence interval [CI], 0.48 to 2.87). In an intention-to-treat analysis, the weight regain was 0.93 kg less (95% CI, 0.31 to 1.55) in the groups assigned to a high-protein diet than in those assigned to a low-protein diet (P=0.003) and 0.95 kg less (95% CI, 0.33 to 1.57) in the groups assigned to a low-glycemic-index diet than in those assigned to a high-glycemic-index diet (P=0.003). The analysis involving participants who completed the intervention produced similar results. The groups did not differ significantly with respect to diet-related adverse events. CONCLUSIONS: In this large European study, a modest increase in protein content and a modest reduction in the glycemic index led to an improvement in study completion and maintenance of weight loss. (Funded by the European Commission; ClinicalTrials.gov number, NCT00390637.).

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Metadata

Authors
Larsen, T. M., Dalskov, S.-M., van Baak, M., Jebb, S. A., Papadaki, A., Pfeiffer, A. F. H., Martinez, J. A., Handjieva-Darlenska, T., Kunešová, M., Pihlsgård, M., Stender, S., Holst, C., Saris, W. H. M., & Astrup, A.
Affiliations
  • University of Copenhagen (DK)
  • MRC Elsie Widdowson Laboratory (GB)
  • University of Crete (GR)
  • German Institute of Human Nutrition (DE)
  • Institute of Endocrinology (CZ)
  • Copenhagen University Hospital (DK)
  • Maastricht University Medical Centre (NL)
Venue
New England Journal of Medicine
Published
2010-11-25
Volume
363
Issue
22
Pages
2102-2113
ISSN
  • 0028-4793 (ISSN-L)
  • 1533-4406
OpenAlex
W2167868973
Cited by
843
References
23
Citations by year
2026: 13 · 2025: 20 · 2024: 39 · 2023: 38 · 2022: 29 · 2021: 58 · 2020: 53 · 2019: 47 · 2018: 50 · 2017: 54 · 2016: 52 · 2015: 77 · 2014: 80 · 2013: 84 · 2012: 89
FWCI
50.03
Type
journal article
Language
en
Open access
Locations
  • New England Journal of Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion, other-oa)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • Research at the University of Copenhagen (University of Copenhagen) (submittedVersion)
  • Deposito Adademico Digital Universidad De Navarra (University of Navarra) (submittedVersion, other-oa)
  • Bristol Research (University of Bristol) (submittedVersion)
  • Explore Bristol Research (submittedVersion)
  • Research Publications (Maastricht University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology (medical) › Diet and metabolism studies
  • Health Sciences › Medicine › Physiology (medical) › Dietary Effects on Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
high-protein diet, low glycemic index diet, weight loss maintenance, weight regain prevention, hypocaloric diet, overweight adults, glycemic index, protein intake, dropout rates, weight loss sustainability, intention-to-treat analysis, body mass index
MeSH terms
Adult, Diet, Reducing, Dietary Proteins, Humans, Obesity, Patient Compliance, Biomarkers, Weight Loss, Abdominal Pain, Body Mass Index, Diet, Protein-Restricted, Glycemic Index, Overweight, Diet, Carbohydrate-Restricted, Intention to Treat Analysis

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