🚀 Bulk up smarter, not harder with Serious Mass!
Optimum Nutrition Serious Mass is a vegetarian-friendly, high-calorie weight gainer powder delivering 1200+ calories, 50g protein, 250g carbs, plus 3g creatine and 24 vitamins & minerals per serving. Designed for those with fast metabolisms or high energy demands, it supports muscle growth and recovery when combined with resistance training and a balanced diet.
| Additives | L-Glutamine |
| Brand | Optimum Nutrition |
| Format | Powder |
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