What question did this study set out to answer?

Examine the relationship between fat intake and sleep quality in individuals.

March 13, 2026Open Access

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

Key Points

Examine the relationship between fat intake and sleep quality in individuals.
Cross-sectional design
Population studied in Iran
Assessed both quantity and quality of fat intake
Evaluated total sleep quality scores
Higher intakes of PUFA and animal fat linked to better sleep quality scores
In women, total fat and unsaturated fats positively associated with sleep quality

Abstract

These 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.

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