PROTEIN DRINK MIX Low-fat formula 40 grams of protein per dose Mixes instantly NPN 80070117 Source of protein for the maintenance of good health. Iso Lean Protein contains 40 grams of protein per dose derived from Cross Flow Microfiltered (CFM) Whey Protein Isolate. This process results in a naturally low-fat product that provides an excellent source of high-quality dietary protein, which can be a healthy and delicious component to help you achieve your weight loss goals. This great-tasting formula is fully instantized and mixes easily into a delicious-tasting protein-packed shake or smoothie. It also contains a balanced array of naturally occurring whey protein microfractions and has an exceptional protein efficiency ratio.