FiT ProteinX-Act™ is a unique, balanced multi-protein formula. Designed in keeping with these findings, FiT ProteinX-Act™ delivers maximum absorption, muscle growth, nitrogen retention and immune system boosting from a selection of four different protein types, including Whey Protein, Egg Albumen, Calcium Caseinate and Soy Isolate. All four of these proteins achieve the very highest scores (each a perfect 1) on the PDCAAS scale, but have different digestive rates, amino profiles and fat contents. No milk powder is used in FiT ProteinX-Act™, thus maximizing high quality protein content (actual usable protein availability is in excess of 85%, compared to approximately 20%-25% for high protein foods such as fish, chicken, eggs and lean red meat!) while reducing fat, lactose and carbohydrates. – See more at: http://www.fitsportslab.co.za/products-page/fits-supplements/meal-replacement/pure-protein/#sthash.TxthP8h0.dpuf