Finally, the protein content of a food was a major contributor to satiety. This is consistent with a large body of research showing that protein is more filling than carbohydrate or fat, per unit calorie.47 Both the lining of the small intestine and the pancreas have the ability to detect dietary protein, and they relay this signal to the NTS.48 For reasons that aren’t entirely clear, this protein signal seems to play a disproportionate role in satiety. Coupled with the effects of protein on the lipostat we discussed in the last chapter, this may explain why high-protein diets help people eat
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eating protein helps you reach satiety faster.
