Optimum Nutrition Serious Mass (5.4 kg)



“Optimum Nutrition Serious Mass 5.4kg (12lb) + Free Shaker
ON Serious Mass is the ultimate weight gainer. If you find it difficult to gain weight, you may find a serving of Serious Mass will help to pack on the pounds and develop the physique you have always wanted. With it’s high calorie, and weight gain formula, this product also works as a protein to support muscle growth. Bulk up efficiently and gradually with this easy to mix, delicious tasting drink. 6 Flavours available, Chocolate, Banana, Chocolate Peanut Butter, Chocolate Mint, Strawberry and Vanilla. Serious Gains, Serious Taste, Serious Mass™.

Product Highlights

1,250 calories per serving
50g of proteins and 250g of carbohydrates per serving
No added sugar
Enjoy between meals &/or post-workout
Add two heaped scoops
New users usually start with 1/2 a serving and then gradually increase”


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