My friend has skinny arms what should he do?

Question

He has skinny arms, should he eat or work out and build muscles

Answer 1

Both, but if he is still developeing into a man sometimes it's impossible to gain weight and muscle because your body keeps growing and growing just wait a while and when ur older he cans tart pumpin those guns.

Answer 2

He needs to eat healthy (many meals a day but small portions) and he needs to Workout and I know most body builders also takes supplement or shakes (proteins). He needs to do weight lifting!

Answer 3

Both..eat right, and do some work-outs in the gym.

Answer 4

Just give it time. Age will put the meat on weather he lifts weights or not.