Gain

Hi there...

I'm a skinny runt by nature. My genetic proclivity wants me to be a string bean. I've battled my genetics for going on 13 years now and think I've done a pretty good job at it.

The bottom line is he hasn't tried everything.

The first place he needs to start is diet. Really skinny folks have a hard time eating enough to gain weight. They might think they're eating a lot... but they're not. If he's serious about adding weight, he needs to be consuming 18 or so calories per pound of body weight.

Of course the foods that comprise these calories are very important as well. To save space and time though, suffice it to say he should shoot for a balanced composition of protein, carbs and fats.

Couple this with intelligent weight training 3-6 days per week and wait... patiently.

I can't stress enough though how much this is about the amount of food he's eating. If he puts himself in a surplus consistently, his body will have no choice but to gain weight.

Google these words - "Hard Gainer". The musclehead websites are loaded with info on this topic. Lots of it involves training and nutrition, and I would read those. Others will involve pharmaceuticals, and those ain't so cool.