You simply will not find a protein of this grade used in other weight gain formulas. Prolab has avoided overloading its formula with carbohydrates. Prolab uses just enough to help fuel your workouts and replenish depleted glycogen stores, but not enough to cause drowsiness. Studies show that too many carbohydrates increase the levels of serotonin crossing over the brain barrier, thereby inducing drowsiness. Fat, although shunned by some, is highly concentrated energy source (double that of protein and carbohydrates) supplying the body with fat soluble vitamins A, D, E, and K. Fat is also a necessary component of all cell membranes, nerve covering, digestive secretions and most importantly, hormone production. A diet too low in fats may actually impair growth (For these reasons, small amounts of necessary dietary fat is contained in N-Large II). Combine N-Large II with a sensible diet and intense training program for best overall gains. N-Large II is a powerful mass gaining formula designed to pack size on the hardest gainers. This potent formula delivers more calories and protein gram for gram. Prolab puts an emphasis on the amount of protein per serving since it is the only nutrient proven to assist in promoting muscle mass. Prolab uses only cross flow, micro filtered, cold processed ion exchanged whey protein. This protein has a superior amino acid profile, an unbeatable bioavailability, is low in lactose and is instantized for easy mixing without a blender.