In overweight adults, regular aerobic exercise does not lead to eating more food or increasing the calories burned from digestion. Instead, the body's overall energy balance changes mainly because it burns fewer calories during daily activities.

In overweight adults, doing aerobic exercise does not increase total daily calorie burn beyond what the exercise itself burns. Instead, the body adjusts by lowering the amount of energy used at rest, not by reducing everyday movement.

When people lose weight, their bodies sometimes slow down more than expected, burning fewer calories at rest — and this might be why some folks struggle more than others to keep the weight off.

If you're stuck at the same weight even though you're eating right and working out, moving more throughout the day—like fidgeting, standing, or walking—and checking for hidden health issues might help you start losing weight again.

Some people stop losing weight even when they keep exercising and eating the same amount, because their bodies may lower energy use in other functions to balance out the extra activity.

Increased fat-free mass resulting from elevated muscle protein synthesis is the primary mechanism for sustained elevation in total daily energy expenditure associated with high-protein diets, not diet-induced thermogenesis.