How to gain weight and what type of food and fruits are needed to gain weight?

Lifestyle: Thanks for writing. A 22 year old man wants to gain muscle mass but not bodyfat. Key is resistance training, not food magic. Join a gym & make close friends with men who lift a lot, eat plenty of protein but avoid sugar, fat & grease. Some men gain muscle much faster than others; almost all women prefer a natural muscle-man. An electric muscle stimulator can help. Shun anabolic steroids. Cheers.