As one of the research directions of novel dietary adjuvant treatment for heart diseases,ketogenic diet has the advantages of improving risk factors,inhibiting ventricular remodeling,and pro-tecting the heart.This paper reviews and summarizes the research achievements of the effect of keto-genic diet on heart diseases and cardiovascular risk factors,elaborates the heart-related mechanism from multiple perspectives,analyzes its positive impacts on reducing cardiovascular disease risk factors and treating heart-related diseases,and summarizes the adverse reactions and contraindications of keto-genic diet,so as to provide new ideas for the prevention and treatment of heart diseases.