hi my baby was gaining weight of around 1 kg every month till 4 month but since two month he is gaining 500 grams only

A. If As even 500 g every month and it is not an issue so basically whatever wait your child has gained till the completion of six months it’s quite an ideal weight that’s what I’m going to say so need not worry about it and after your child completes the age of six months start with proper semisolid food as well