Rule 1, R1 Protein Isolate, Chocolate Fudge 5.03lbsProduct Description Rule One Proteins R1 Protein delivers two of the purest, fastest and most naturally BCAA rich sources available. So pure that over 80% of the calories in each serving are derived from protein, leaving no room for sugars or fillers. A great addition to the Rule One family, R1 Protein? naturally flavored. Same great Whey Isolate Hydrolysate formula but now offered naturally flavored. To make a good thing even better, R1 Protein