My goal is to gain 20 lbs by the end of August. Starting on July 3rd when finals are over, I'm planning to start working out since who knows when. I know I'm gonna feel sore for the next 3 days and after that I can start a consistent routine. I don't know if it's possible but I want to start off by gaining 10 lbs by the end of July or before (the sooner the better). So I stopped by the nearest local vitamin center and they have this protein drink in a can. It's called Pure Pro I think and it contains 50g of protein in a 16 or 24 oz. can. And my meals are only going to be brown rice, chicken, and tuna. If I work out by lifting, should I concentrate on 2 body parts per day or just 1? If you guys know the best/efficient way to gain 10 lbs in 3 weeks to a month, please let me know. Thanks!