Rule 1 Proteins is operated by some of the original staffers at Optimum Nutrition, and as one of the highest selling protein companies around, Rule 1 has got some serious experience to back their products. R1 Whey Blend by Rule 1 is an exciting entry into a heavily saturated marketplace. With so many proteins to choose from, R1 Protein stakes its claim in the sand as one of the best tasting proteins ever made. With almost no fat, carbohydrates or cholesterol, and zero added fillers, R1 Protein is a wolf in sheep's clothing - a seriously underrated blend. Best consumed with 250-300ml of chilled water post-workout or blended into a smoothie throughout the day to meet your protein requirements.