This has a lot to do with physical fitness. Some people are in poor health, and nutrition is often difficult to be absorbed. How can you gain weight if you can't absorb nutrition? So there are no natural skinny and fat people.

In fact, this situation is a disease in medicine. Maybe many people envy this kind of person who is born thin and can't get fat just by eating. But what you see is superficial. When you envy these people, they often try their best to gain weight. As we all know, generally thin people are in poor health. Because many of their thinness are caused by insufficient nutrition.

I'm in the same situation. Now, much better. I have a bad stomach since I was a child. Often prone to stomach pain or diarrhea. I was really thin before high school, and I always have been. I belong to the kind that I can eat especially. So what every classmate said to me the most was. I really envy you. Why can you eat so much without getting fat?

Because of the stomach. Every time I eat too much, or I can't eat clean. I will have diarrhea or stomachache all the time. This happens all the time. How can you gain weight? And the physical quality has been particularly poor. So I always wanted to grow more meat at that time.

However, after I went to college, my stomach slowly got better. It also absorbs more nutrients than before. So now the weight can be said to be normal.

So there is no natural fat man, and there is no natural thin man. In the final analysis, the reason for being fat and thin is your own physical quality. You shouldn't envy those who only eat but don't get fat. Because they have nothing to admire. On the contrary, they may be more envious of your good figure. If you can choose, who wants to have a sick body?