Optimum Nutrition
Optimum Nutrition Serious Mass 5.4kg
Protein Blend • 22% active • 5400g
16 servings • 334g/serving
82
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Quality Breakdown
Lab Testing
74
Ingredients
68
Brand Rep
92
About
1250 calories per serving with 50g protein, 252g carbs and 25 vitamins & minerals. The original mass gainer.
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