The idea that the order your body burns food (alcohol first, then protein, etc.) tells you which food makes you feel full first is not true — eating these foods in equal amounts doesn’t make you feel differently full.

The study gave people different meals with the same calories — some high in protein, fat, carbs, or alcohol — and found that no matter what they ate, they felt just as full and ate the same amount afterward. So even though the body burns them differently, that doesn’t make one more filling than another.