Diet relates to natural sleep-wake patterns measured by morning-evening preference and sleep timing in young Japanese women

A lower Morningness-Eveningness Questionnaire score is associated with a lower intake of protein, vitamins, and minerals in 112 young Japanese women.

• Evening-type individuals tend to consume less protein, calcium, magnesium, zinc, and certain vitamins compared to morning-type individuals.
• A later midpoint of sleep correlates with reduced intake of protein, cholesterol, potassium, and several vitamins.
• Both lower dietary intakes of essential nutrients and higher consumption of noodles are observed in those with evening chronotype.
• These findings indicate that an evening chronotype may be linked to less healthy eating patterns.

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