Egg yolk is rich in nutrients, but it is not recommended to eat more. Take the most common egg yolk as an example, its nutritional value is very high, in which every 100 grams of egg yolk contains 328 kilocalories of energy, 15.2 grams of protein, 28.2 grams of fat and 240 milligrams of phosphorus and a variety of other nutrients, which are fat-soluble vitamins are also very rich. Egg yolk belongs to the food with high nutrient density. Moderate consumption of egg yolks can supplement the body’s nutritional needs and energy, which is conducive to human health. However, excessive consumption of egg yolks is not recommended to avoid gastrointestinal discomfort, such as bloating, abdominal pain and other symptoms. The cholesterol content of egg yolk is very high (1510mg/100g), and people with abnormal lipid metabolism need to strictly limit their intake. For people who are allergic to egg yolks should be prohibited from consuming them, so as not to induce allergic symptoms, such as skin itching and rashes. Egg yolks can also be consumed with staple foods and foods with high vitamin content, which can ensure balanced nutrition of food.