Evidence map›Paper›PMID 41807052›Full record

ArticleOsong public health and research perspectives2026

Association of quantity and quality of fat intake with sleep quality: a cross-sectional study in Iran.

Melika Fallah, Azadeh Aminianfar, Awat Feizi, Maryam Fallah, Peyman Adibi, Hamidreza Roohafza, Alireza Ani, Leila Azadbakht, Ahmad Esmaillzadeh

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Article in Osong public health and research perspectives, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

9 authors.

Melika FallahResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
Azadeh AminianfarResearch Center for Biochemistry and Nutrition in Metabolic Diseases, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran.
Awat FeiziDepartment of Biostatistics and Epidemiology, School of Health, Isfahan University of Medical Sciences, Isfahan, Iran.
Maryam FallahDepartment of Clinical Nutrition and Dietetics, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Peyman AdibiIntegrative Functional Gastroenterology Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Hamidreza RoohafzaMental Health Department, Isfahan Cardiovascular Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.
Alireza AniDepartment of Bioinformatics, Isfahan University of Medical Sciences, Isfahan, Iran.
Leila AzadbakhtDepartment of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.
Ahmad EsmaillzadehDepartment of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran.

Funding

Tehran University of Medical Sciences, Tehran, Iran and Isfahan University of Medical Sciences
6 · The paper itself

Abstract

backgroundThe association between dietary fat intake and sleep quality remains unclear. This study investigated the impact of both dietary fat quality and quantity on sleep quality.

methodsIn this cross-sectional study, participants completed a food frequency questionnaire and Pittsburgh Sleep Quality Index to assess quantity and quality of fat intake and sleep quality.

resultsA total of 1,904 participants (55% female) were included in the study. Participants in the highest tertile of polyunsaturated fatty acids (PUFA) intake, compared with those in the lowest tertile, had significantly higher total sleep quality scores (odds ratio [OR], 1.27; 95% confidence interval [CI], 1.01-1.62) and longer sleep onset latency (OR, 1.40; 95% CI, 1.08-1.83). Participants with higher animal fat intake exhibited higher total sleep quality scores (OR, 1.44; 95% CI, 1.09-1.89) and increased sleep disturbances (OR, 1.37; 95% CI, 1.02-1.83). Among women, those in the highest tertile compared with the lowest tertile showed increased odds of higher total sleep quality scores with total fat (OR, 1.37; 95% CI, 1.04-1.82), PUFA (OR, 1.41; 95% CI, 1.07-1.87), monounsaturated fatty acids (OR, 1.44; 95% CI, 1.09-1.90), saturated fatty acid (OR, 1.33; 95% CI, 1.01-1.77), and animal fat (OR, 1.58; 95% CI, 1.18-2.11).

conclusionThese findings suggest that higher intakes of PUFA and animal fat are associated with higher total sleep quality scores. When stratified by sex, higher intake of total fat and unsaturated fats was associated with higher total sleep quality scores in women only.

Indexed as

Cross-sectional studiesDietary fatsPolyunsaturated fatty acidsSleep quality

Identifiers

PMID41807052
PMCPMC13175935

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.