Not all people who work out don't eat egg yolk. But when you reach a certain level of physical fitness and have a lot of muscles, you must have enough protein intake, otherwise you can't maintain the volume of muscles. Because amino acid (protein) is the main raw material of muscle.

Bodybuilders, in particular, are very big. They have to do a lot of exercise every day and take in enough nutrition to keep up. Otherwise, the muscle is undernourished and cannot be maintained.

Although egg yolk is nutritious, eating too much will affect the amount of other things you eat. After all, there are so many bellies. If you eat egg yolk, you may not be able to eat so much protein. Egg yolk contains more cholesterol, which is not needed by human body. So just eat two yolks. If there are more, the human body won't need so much. So I only eat egg whites.

But as far as the average person is concerned, the daily diet is enough, and the daily exercise and physical exertion will not consume all the food at all. Therefore, we ordinary people don't need to eat like this. Especially some thin people, the body simply can't consume so much protein.

Fitness varies from person to person, and everyone has a different foundation. First of all, we must have a balanced nutrition. If we are short of protein, we need to eat protein, otherwise we should eat normally. Decide what to eat according to your own conditions.

Whether it is necessary to supplement protein can be judged by these points. First, whether the body is tired, slow recovery, muscle loss. Second, the performance of decreased immunity is easy to get sick. Third, the hair is dry, the nails are dull, listless, hungry, and want to eat meat. These symptoms may be a lack of protein, and it is necessary to increase the intake of protein.