A physiological hypothesis suggesting that the human body has an internal regulatory mechanism that attempts to maintain a specific body weight and fat percentage. This 'set point' is managed by the hypothalamus, which adjusts hunger signals, metabolic rate, and energy expenditure to counteract fluctuations in caloric intake. When an individual loses weight rapidly through caloric restriction alone, the body often triggers 'starvation' defenses to return to its original set point.
Successful long-term wellness protocols focus on lowering the set point rather than just creating a temporary caloric deficit. This is achieved through hormonal recalibration—specifically by improving insulin and leptin sensitivity. By changing the quality of food and the timing of meals, it is possible to reset the body's internal thermostat to a lower, healthier weight that is easier to maintain without constant hunger.
The definitive guide by Russell Clark, FNP-C, APRN