Cited by 129Nutritional Studies and DietDiet, Metabolism, and DiseaseDiet and metabolism studies

Changes in intake of protein foods, carbohydrate amount and quality, and long-term weight change: results from 3 prospective cohorts

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Smith, Jessica D, Hou, Tao, Ludwig, David S, Rimm, Eric B, Willett, Walter, Hu, Frank B, Mozaffarian, Dariush·2015·The American Journal of Clinical Nutrition

Abstract

Background Dietary guidelines recommend interchanging protein foods (e.g., chicken for red meat), but they may be exchanged for carbohydrate-rich foods varying in quality [glycemic load (GL)]. Whether such exchanges occur and how they influence long-term weight gain are not established.Objective Our objective was to determine how changes in intake of protein foods, GL, and their interrelationship influence long-term weight gain.Design We investigated the association between 4-y changes in consumption of protein foods, GL, and their interaction with 4-y weight change over a 16- to 24-y follow-up, adjusted for other lifestyle changes (smoking, physical activity, television watching, sleep duration), body mass index, and all dietary factors simultaneously in 3 prospective US cohorts (Nurses' Health Study, Nurses' Health Study II, and Health Professionals Follow-Up Study) comprising 120,784 men and women free of chronic disease or obesity at baseline.Results Protein foods were not interchanged with each other (intercorrelations typically <|0.05|) but with carbohydrate (negative correlation as low as -0.39). Protein foods had different relations with long-term weight gain, with positive associations for meats, chicken with skin, and regular cheese (per increased serving/d, 0.13-1.17 kg; P = 0.02 to P < 0.001); no association for milk, legumes, peanuts, or eggs (P > 0.40 for each); and relative weight loss for yogurt, peanut butter, walnuts, other nuts, chicken without skin, low-fat cheese, and seafood (-0.14 to -0.71 kg; P = 0.01 to P < 0.001). Increases in GL were independently associated with a 0.42-kg greater weight gain per 50-unit increase (P < 0.001). Significant interactions (P-interaction < 0.05) between changes in protein foods and GL were identified; for example, increased cheese intake was associated with weight gain when GL increased, with weight stability when GL did not change, and with weight loss when exchanged for GL (i.e., decrease in GL).Conclusion Protein foods were commonly interchanged with carbohydrate, and changes in protein foods and GL interacted to influence long-term weight gain.

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Authors
Smith, J. D., Hou, T., Ludwig, D. S., Rimm, E. B., Willett, W., Hu, F. B., & Mozaffarian, D.
Affiliations
Tufts University (US)
Corresponding author
Smith, Jessica D
Venue
The American Journal of Clinical Nutrition
Publisher
Elsevier BV
Published
2015-06
Volume
101
Issue
6
Pages
1216-1224
ISSN
0002-9165 (ISSN-L)
OpenAlex
W2109060632
Cited by
129
References
36
Citations by year
2026: 2 · 2025: 9 · 2024: 14 · 2023: 9 · 2022: 11 · 2021: 8 · 2020: 8 · 2019: 18 · 2018: 17 · 2017: 13 · 2016: 13 · 2015: 7
FWCI
17.83
Type
journal article
Language
en
Open access
Locations
  • American Journal of Clinical Nutrition (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
Funders
  • Canadian Institutes of Health Research
  • National Heart, Lung and Blood Institute (R01 HL115189, DM)
  • NIH (P01 CA87969)
  • Nurses’ Health Study (UM1 CA176726)
  • Nurses’ Health Study II (UM1 CA167552)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
Keywords
protein-rich foods, glycemic load, carbohydrate intake, long-term weight change, weight gain, cheese intake, meat consumption, Fabaceae, nuts, dairy products, dietary habits, weight stability
MeSH terms
Adult, Blood Glucose, Dairy Products, Diet, Dietary Carbohydrates, Dietary Proteins, Female, Follow-Up Studies, Humans, Life Style, Male, Meat, Middle Aged, Prospective Studies, Weight Gain, Weight Loss, Body Mass Index, Glycemic Index

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