If you currently don't take vitamins, you ought to start. The body is undergoing a great deal of improvements with your new lifestyle and might require extra nourishment. There is a wide variety of integratori alimentari supplements on the market, thus be sure to choose the one which is best for your age, gender and any other specific needs you could have. If you are on any medications, talk with a medical doctor, first to be sure that you have no side effects.
A great diet tip when you're trying to gain muscle would be to ensure you are eating enough calories.