ArticleEuropean journal of clinical nutrition2024
Protein intake and its association with sleep quality: results from 3 prospective cohort studies.
Article in European journal of clinical nutrition, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Association Between EAT-Lancet Diet Adherence and Sleep Quality in Lactating Women: A Cross-Sectional Analysis.Health science reports · 2026Article
- The association between animal‑based and plant‑based protein intake with sleep quality, mood, anxiety, depression and stress among elderly: a cross-sectional study.BMC public health · 2025Article
- Article
- Relationship Among Macronutrients, Dietary Components, and Objective Sleep Variables Measured by Smartphone Apps: Real-World Cross-Sectional Study.Journal of medical Internet research · 2025Article
- Association between isocaloric substitution of macronutrient intake with sleep disorders and psychological health in male adults.Journal of research in medical sciences : the official journal of Isfahan University of Medical Sciences · 2025Article
- Association of plant and animal protein intake with sleep quality and quality of life in hemodialysis patients: a multicenter cross-sectional study.Frontiers in nutrition · 2024Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
BACKGROUND/
objectivesSleep quality is a critical factor for daytime functioning and chronic disease risk. We investigated the association between intakes of total protein and protein subtypes and sleep quality in three U.S. cohorts. SUBJECTS/
methodsIn the Nurses' Health Study (NHS), NHS2, and Health Professionals Follow-up study (HPFS), dietary intake was assessed every 4 years using validated food frequency questionnaires. Sleep quality was measured once with the Pittsburgh Sleep Quality Index or adapted versions. With ordinal logistic regression, odds ratios (OR) and 95% confidence intervals (CI) were calculated to estimate the odds of having better sleep quality versus poorer sleep quality depending on protein intake (%Energy) based on the average of the prior two dietary questionnaires.
resultsIn 32,212 women from NHS, 51,126 women from NHS2, and 14,796 men from HPFS, total protein intake was not associated with sleep quality. However, the intake of protein from vegetable sources showed no association or a positive association with sleep quality (OR for quartile 4 versus quartile 1 in NHS: 1.12, 1.04-1.20, P-trend < 0.001; NHS2: 1.01, 0.95-1.07, P-trend = 0.90; HPFS: 1.11, 0.99-1.23, P-trend = 0.05), whereas divergent results were observed for animal protein sources. Overall, intakes of processed red meat and poultry were associated with worse sleep quality, whereas no or positive associations were observed for dairy and fish protein.
conclusionOur results suggest that plants as a source of protein may be associated with better sleep quality than animal sources of protein. Further studies are warranted to validate our findings.
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