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The result: fast glycogen loading without the sugar crash
✗ Anyone with a weight loss or lean cutting goal — 1
those using testosterone support supplements as part of a post-cycle support protocol
microbials tested
Optimum Serious Mass 6lbs Featured Deals The result: fast glycogen loadingOptimum Nutrition Serious Mass High Calorie Mass Gainer (6 lbs) Optimum Nutrition Serious Mass is the classic hard gainer's mass gainer engineered to deliver a massive 1,250 calories, 50g of protein, and 254g of carbohydrates per 2 scoop serving. For ectomorphs and underweight athletes who genuinely struggle to eat enough food to fuel muscle growth, Serious Mass provides a convenient, drinkable calorie surplus that would take several full meals to
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