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Metabolic Set Point

Meaning

The metabolic set point is a theoretical, centrally regulated body weight or body fat mass that the hypothalamic regulatory centers strive to maintain through compensatory adjustments in energy expenditure and appetite. This homeostatic mechanism, often influenced by genetics, early life nutrition, and long-term hormonal signaling, acts as a powerful resistance to significant, sustained changes in body composition. Hormones like leptin, ghrelin, and insulin communicate the body’s energy status to the brain, effectively defending this established set point. Understanding this concept is crucial for managing weight and metabolic health, as it explains the common phenomenon of weight regain after dieting.