Three things it changes
One signal, doing its normal job for longer than it naturally would.
- Appetite between meals. The pull toward the next snack quiets down. Patients mention this before the scale.
- Fullness during a meal. You reach enough sooner and stay there longer.
- Gastric emptying. The stomach clears more slowly — which extends the fullness, and is why most side effects are digestive.
It also increases insulin release when blood glucose is high. This drug family came out of diabetes medicine, which is why we read your metabolic markers first.