SAVE $16.00

Optimum Nutrition Serious Mass Protein Mass Gainer – 12 lbs

4.7 rating

ON Serious Mass is the ultimate in protein mass gainer formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, ON Serious Mass 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.

Optimum Nutrition

Sizes
12 lbs
6 lbs
16 Servings$3.37 / serving$0.067 per gram of protein

$69.87 $53.87

- +
SKU: N/A Category:
➲ Product Overview

ON Serious Mass

ON Serious Mass is the ultimate in protein mass gainer formulas. With 1,250 calories per serving and 50 grams of protein for muscle recovery support, ON Serious Mass 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.

Serious weight gain requires serious calories. However, those who need the extra calories most, often have the toughest time consuming enough of them. For many aspiring to be bigger, highly-active metabolisms, weaker appetites, and on-the-run lifestyles make consuming sufficient calories through whole foods alone a real challenge. With Serious Mass, you’ve got nothing to lose and lots to gain. We’ve consolidated over 1,250 calories, 50 grams of protein, 250-plus grams of carbohydrate, and 25 vitamins and minerals with added glutamine and creatine into every serving.

  • 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

It’s time to stop thinking small – get serious… Serious Mass. 1,250 calories per serving in water; 1,630 calories when made with low fat milk. 50 grams of protein from a combination of faster and slower digesting sources including Whey, Casein, and Egg. 250-plus grams of carbohydrate to support fueling of intense workouts and aid in the replenishment of glycogen stores with NO ADDED SUGAR. Enhanced with Creatine, L-Glutamine and Glutamine Peptide, Choline, Inositol, PABA, and MCTs. 25 Vitamins and Essential Minerals with an emphasis on B-Vitamins and Antioxidants.

➲ About Optimum Nutrition

ON – Optimum Nutrition operates multiple state-of-the-art production facilities across the US and is one of only a few sports nutrition companies to manufacture in every nutrition product category. Optimum Nutrition has always taken a hands-on approach to maintaining the very highest standards of quality.

Optimum Nutrition’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.