HIGH-CALORIE WEIGHT GAINER
Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, this instantized powder makes the ideal post-workout and between meals shake for sizing up your goals. Serious Mass provides you with the tools you need to pack on the pounds and help you develop the physique you’ve always wanted.
- Adding Calories Has Never Been This Easy or Tasted So Good
- 1,250 Calories
- 50 Grams of Blended Protein
- Over 250 Grams of Carbohydrates with NO ADDED SUGAR
- Creatine, Glutamine and Glutamic Acid
- 25 Vitamins and Essential Minerals
Optimum Nutrition, Inc. (ON) is part of Glanbia, a leading international cheese and nutritional ingredients group. ON owns and operates two premium sports nutrition brands, Optimum Nutrition and American Body Building (A.B.B.). Together, these brands provide active adults around the world with a comprehensive line of powdered, bar, tablet, capsule and ready to drink products.
Company Owned & Operated Manufacturing
With state-of-the-art production facilities in Aurora, Illinois; Walterboro, South Carolina and Sunrise, Florida, ON is one of the few sports nutrition companies to manufacture in every product category. From the very beginning in 1986, Optimum Nutrition has always taken a hands-on approach to maintaining the very highest standards of quality.
Before a single machine is turned on in our manufacturing facilities, ON procurement professionals carefully select the most premium raw materials. A Certificate of Analysis is required for every ingredient, which is then tested and retested for compliance. Quality assurance performs daily inspections of our current Good Manufacturing Practices (cGMPs) compliant facilities, which are Certified for Sport by NSF.
History of Innovation
In addition to making Gold Standard 100% Whey, the worlds' best-selling whey protein, ON created the slowly digesting protein category with Gold Standard 100% Casein. ON also created the anytime energy category, which remains dominated by Essential Amino Energy.
ON's strict ingredients selection, quality control, lab testing and manufacturing processes are all done for one reason: to provide you with the highest quality sports nutrition products available. Our company was founded with a mission to bring consistent quality to the marketplace, and we are constantly working on setting even higher standards.