Circadian nutrition refers to structuring meals in alignment with the body’s circadian rhythm a roughly 24-hour internal clock influenced by light, darkness, sleep, and feeding patterns. This rhythm controls key physiological processes, including digestion, insulin sensitivity, appetite hormones, and energy metabolism.
Studies suggest that the body processes nutrients more efficiently during daylight hours, particularly in the morning and early afternoon. As evening approaches, metabolic activity naturally slows, making late-night eating more likely to disrupt blood sugar regulation and fat metabolism