As for the staple food, you must not eat rice. That is a staple food that is easy to get fat. . I suggest you chew corn, which is the best. I've been chewing yellow corn and burning fire recently.

I am 17 1 m and now I am 104 kg. . I was so worried. I only need to eat chaff and swallow vegetables now, and I will gain weight in half a year 13 kg.