Optimum Nutrition Serious Mass Protein Powder 2.72kg SELECT: FLAVOUR:STRAWBERRY 8g Fibre 0

8g Fibre 0

Regulated Name: Dietary supplement with caffeine and sweetener

Magnesium Stearate)

a sugar-free sports drink

Backed by science and perfected by you

Optimum Nutrition Serious Mass Protein Powder 2.72kg SELECT: FLAVOUR:STRAWBERRY 8g Fibre 0Serious Mass by Optimum Nutrition is the ultimate weight gaining formula that champions quicker muscle building. If you find it difficult to gain weight, Serious Mass can help you develop the physique you're striving for. Without consuming adequate calories or quality protein sources, you simply can't get any bigger to enhance muscle growth. One shake serving delivers an incredible 1,250 calories, 50 grams of protein and 250 grams of carbohydrates.