| Optimum Nutrition Serious Mass Strawberry Weight Gain Protein Powder || 12 lbs

SERIOUS MASS from Optimum Nutrition is a powerful mass accelerator allowing beginners and advanced athletes a rapid increase in body weight and muscle mass. SERIOUS MASS has the particularity of being extremely dosed in Maltodextrins, complex carbohydrates that assimilate slowly in the body, allowing a powerful and quality caloric intake responsible for rapid mass gain without increasing fat mass.

SERIOUS MASS is also based on a tri-source protein matrix (Whey Protein/Egg Protein/Casein). Whey diffuses rapidly in the body, while casein and egg protein are slowly assimilated. The combination of these 3 protein sources allows to have a continuous supply of amino acids and thus strongly stimulate muscle growth.

USAGE For quick mass gain (approx. 1kg/week): Use SERIOUS MASS every day, as a supplement to a diet very rich in starchy foods. Take 2 shakers daily between meals 1 shaker = 1/3 measuring cup + approx. 500 ml water or semi-skimmed milk