In addition to cholesterol, egg yolks are rich in fat, phosphorus, carbohydrates and other trace elements, all of which are nutrients needed by the body. The main components of egg yolk include cholesterol, choline and selenium, etc. Every hundred grams of egg yolk contains 66.6 grams of water and 14.7 grams of protein, which can replenish the nutrients and trace elements needed by the body when consumed in moderation. Due to the high cholesterol content in egg yolks, excessive consumption may affect cardiovascular and cerebrovascular health. So it must be consumed in moderation. It should be noted that the people who are allergic to egg yolks should be prohibited from eating, and patients with high cholesterol should consume in moderation under the guidance and advice of a doctor to avoid aggravating the condition. Egg yolks can be consumed with many foods, but must be consumed in moderation to avoid harm to the body.