Of course, it's not good. The human body needs to take in all kinds of different nutrients every day. If you only eat vegetables and fruits, the intake of carbohydrates and protein will be insufficient, which will do great harm to the body in the long run.

When carbohydrate is insufficient, that is, if you don't eat staple food for a long time, protein will be decomposed first. protein is an integral part of many important organs of the body, so you won't get fat if you pay attention to a reasonable diet. First of all, we should eat breakfast and lunch well, and it is recommended to eat eight points full for dinner, and just pay more attention to exercise at ordinary times.