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Time-Restricted Feeding

Meaning

Time-restricted feeding (TRF) is a structured dietary intervention that limits the daily caloric intake window to a specific, consistent duration, typically between 4 and 12 hours, without necessarily restricting the type or amount of food consumed. This eating pattern is a form of intermittent fasting that focuses on aligning food intake with the body’s natural circadian rhythm. Clinically, TRF is a powerful tool for improving metabolic flexibility, enhancing insulin sensitivity, and optimizing the diurnal rhythm of key hormonal secretions.