Im trying to get the most out of my workout routine, but Im blessed/cursed with a fast metabolism. Im 5’11 and weight about 140 lbs. I’ve done karate and amateur/professional wrestling in the past, and work out about 5 days a week, take multivitamins and protien supplements. It seems like its physically impossible for me to weigh more than 140 lbs. what should I be eating to gain the most weight and convert it to muscle?