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Optimum Nutrition Serious Mass is a vegetarian-friendly, high-calorie weight gainer powder delivering over 1200 calories, 50g protein, 250g carbs, 3g creatine, and 24 vitamins & minerals per serving. Designed for active metabolisms and athletes, it supports muscle growth and recovery when combined with resistance training and a balanced diet.
| Additives | L-Glutamine |
| Allergen Information | Milk, Soy |
| Units | 5000.0 Grams |
| Serving Recommendation | 2 Scoops (334g) |
| Brand | OPTIMUM NUTRITION |
| Format | Powder |
| Age Range Description | Adult |
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