Choosing a supplement that supports your fitness goal is the best idea. If you want to put on weight in a healthy manner and build muscle mass, then adding a weight gainer in your routine will be beneficial. GNC Pro Performance Weight Gainer Double Chocolate Flavoured Powder is one of the top selling GNC fitness supplements.

Get those extra calories needed by the body to gain weight without adding any extra fat to your system. The goodness of essential nutrients like vitamins and minerals help perform various body functions. It is ideal for beginners and intermediate fitness enthusiasts, especially those who are hard gainers.