how to gain weight?

Oh I used to have this problem, I did everything to try and put on weight but the only thing that worked for me was a thing called "Body Bulk" from the health food shop..its a powder you mix with milk within three months O had put on quite a bit of weight, years later now I want to take it off....but I do understand what you are going through.

Sofar the only few thing i can think of is eat alot of food or drink substcow shakes that are made to gain weight.