OPTIMUM NUTRITION (ON) Serious Mass High Protein High Calorie Weight Gainer Powder - 3 kg (Chocolate) with Vitamins and Minerals, Vegetarian

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💥 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, and 250g+ carbs per serving, enriched with 23+ vitamins and minerals, creatine, and glutamine. 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. Manufactured under strict quality standards with authenticity verification for peace of mind.