CGA and cancer: Chga‐KO mice provide an important model to study the roles of individual CgA‐derived peptides through analysis of phenotypes after supplementation.33, 40, 45, 46, 47 Here, we focus on how full‐length CgA and its peptides, including PST, vasostatin‐1, CST, and serpinin, are important modulators of cardiovascular functions, immunometabolism, and cancer.