Optimum Nutrition is a company with a reputation of delivering the highest quality products that work. This hasn’t changed with the production of Serious Mass. As the name suggests this product was designed for individuals looking to gain weight fast and this is made possible by an incredibly high 1250 Calories per serve. The bulk of the 334 gram serving size is made up of carbohydrates essential for assisting muscle growth, boosting glycogen energy stores and helping hard gainers and serious athletes alike gain kilos fast.
This product really is for what the name suggests. For any individual with the desire to pack on weight fast serious mass with it’s 1250 calories per serve is ideal. Optimum nutrition also as a master stroke used a vitamin and mineral blend with B vitamins and antioxidants the priority as well as MCT oils in serious mass! Tick of Approval from the Genesis Team!