Hello, Ma'am, my son is very weak. I mean, his health isn't improving. We've given him a lot of things. But his health isn't improving, I mean, it's not growing at all. He just doesn't gain any weight at all!

A. Namaste Father, It mainly depends on their metabolism as such , were in spite of eating healthy and well they dont gain weight much but they are active enough for their age other even occurs due to hyperthyroidism as well, but that needs to be diagnosed