MET-Rx Supreme Whey protein is a quality blend of Whey Protein Isolate and Whey Protein Concentrate. Whey protein has one of highest biological values of any protein supplement on the market due to its excellent amino acid profile, solubility and digestibility. Protein is a vital component of building and maintaining a strong, healthy body, especially for atheletes and for those engaging in intense exercise. Supplies 72gm Protein per 100gms powder. MET-Rx Supreme Whey is aspartame free.