Dietary intervention is essential as a primary prevention measure for cardiovascular diseases. Nurses master scientific dietary guidance methods, which can help reduce the risk of cardiovascular diseases in high-risk groups and reduce the medical burden of cardiovascular diseases. This paper reviews the classification of intermittent fasting, its impact on cardiovascular risk factors, its possible mechanisms for preventing cardiovascular diseases, its safety and compliance, and suggestions on domestic cardiovascular research. In order to provide references for future research in China.