Egg yolk is high in calories and rich in cholesterol. Eating egg yolk can easily lead to an increase in human calories, which leads to obesity, so you can't eat egg yolk during weight loss.
Egg yolk is rich in fat, including neutral fat, lecithin and cholesterol. It is also rich in minerals such as calcium, phosphorus and iron, and it is also rich in protein, which is a kind of protein with higher price. It is also rich in vitamins, among which vitamin A, vitamin D and vitamin B are the most.