Pea Protein for Weight Management

Research suggests that pea protein may support appetite regulation and weight management through several biological mechanisms, including stimulating the release of satiety hormones such as cholecystokinin (CCK) and glucagon-like peptide 1 (GLP-1) from intestinal tissue. Studies indicate that partially digested forms of pea protein, known as hydrolysates, may also slow gastric emptying and influence hunger-related hormones like ghrelin, with one small randomized controlled trial in overweight men finding that a pea protein hydrolysate reduced calorie intake at a subsequent meal by roughly 126 calories. The available evidence comes primarily from laboratory tissue studies and a single small clinical trial, which limits how confidently findings can be applied to broader populations, and one lab study found that pea protein hydrolysates did not directly activate the CCK receptor the way soy protein hydrolysates did, suggesting pea protein's satiety effects may be more limited in certain respects. Overall, the research is preliminary and directionally promising but not yet sufficient to draw firm conclusions about pea protein's practical role in weight management for the general population.