There are a variety of heart-protective foods, the most common of which include foods rich in fiber, as fiber reduces the viscosity of the blood and can play a role in protecting the heart’s blood vessels. Commonly used foods include celery, leeks, etc. In addition, heart-protective foods include various types of nuts or fruit hearts, like sour date seeds and lotus seeds hearts can play a role in protecting the heart. In addition, some red foods can nourish the heart and blood, including peanuts, red dates or tomatoes. In addition, foods or fruits rich in potassium ions also help protect the heart and can improve the occurrence of arrhythmias to a certain extent, including oranges, tangerines, bananas, such fruits are relatively rich in potassium ions.