Overview

• A Sleep Health study published June 15, 2025, by Columbia and University of Chicago researchers linked daily consumption of five cups of fruits and vegetables to better sleep.
• Participants who met the CDC’s full serving definition saw an average 16% improvement in sleep quality compared with those who ate no produce.
• Sleep enhancements were measurable the very same night after the dietary change, demonstrating benefits within 24 hours.
• Researchers tracked 34 healthy young adults over 201 days using a food-logging app and wrist monitors to objectively correlate diet with sleep fragmentation.
• Fruits and vegetables supply carbohydrates that aid tryptophan uptake in the brain, supporting melatonin synthesis and deeper, uninterrupted rest.