PROLAB takes the mystery out of building the body youre after with a coordinated array of advanced nutritional formulas that deliver what they promise. So you can spend a lot less time figuring out what to take, & a lot more time hitting your workouts & achieving your goals. For over 20 years, PROLAB has made building muscle more understandable, more accessible, & way more attainable. Do the right thing for your body & get with the PROLAB program. PROLAB® N-Large 2 is a powerful mass gaining support formula designed to promote size on the hardest gainers. We emphasize the amount of protein per serving since it is the essential nutrient that promotes muscle mass. PROLAB N-Large 2 also contains a special blend of carbohydrates to help fuel & support weight training. Fat, although shunned by some, is a highly concentrated energy source (double that of protein or carbohydrates). Fat is also a necessary component of all cell membranes, nerve covering, digestive secretions, & most importantly, hormone production. A diet too low in fats may actually impair growth. For these reasons, small amounts of fat are contained in PROLAB N-Large 2 52g Mass Gainer Whey Protein. For best results, combine PROLAB N-Large 2 with a sensible diet & intense training program.