Impact Whey Protein is a fast absorbing source of protein that is a by-product formed during the manufacturing of milk and cheese. Each serving of Impact Whey Protein contains over 80% of undenatured protein, providing a range of both essential and non-essential amino acids which are important for recovery and stimulating muscle growth. Impact Whey Protein is also low in fat and carbohydrates which makes it a perfect source of protein for those looking to reduce body fat levels while increasing lean muscle mass. Ingredients: Whey Protein Concentrate, Soy Lecithin. ALLERGENS: Contains Milk & Soy (Lecithin) Ingredients.