Optimum Nutrition Serious Mass - Chocolate 6 LB
(VAT incl.)
1 people bought this product this week
- High-calorie formula supports weight and muscle gain
- Premium protein blend for muscle recovery and growth
- Rich chocolate taste mixes easily with water or milk
- Fortified with vitamins and minerals for complete nutrition
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Optimum Nutrition Serious Mass is designed for people who struggle to gain weight and muscle despite consistent training, offering a high-calorie chocolate powder that combines whey protein with complex carbohydrates in each serving. It's meant to bridge the gap when whole food alone isn't enough to meet your daily caloric and nutritional needs, whether you're a hardgainer or in intense training. The formula includes vitamins and minerals and mixes easily with water or milk for post-workout recovery or between-meal nutrition.
Fuel your muscle-building journey with Optimum Nutrition Serious Mass, the ultimate high-calorie weight gainer designed for athletes and fitness enthusiasts who struggle to pack on size. Each serving delivers a powerful blend of premium protein, complex carbohydrates, and essential nutrients to support your mass-gaining goals.
This chocolate-flavored powerhouse combines quality whey protein with a calorie-dense formula that helps you meet your daily nutritional requirements, especially when whole food alone isn't enough. Whether you're a hardgainer looking to break through plateaus or an athlete in intense training, Serious Mass provides the nutritional foundation your body needs to grow.
Transform your nutrition strategy and achieve the gains you've been working toward. Serious Mass isn't just a supplement, it's your partner in building the physique you deserve.
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Estimated delivery: 1–3 business days
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How to Use
Mix 2 scoops of the powder into 24 fluid ounces of cold water or milk using an electric blender. Use as a post-workout recovery tool, as part of a complete meal, or in your daily snack routine to raise caloric intake. Want to add even more calories to your shake? Mix in fruits, berries, nuts, peanut butter, and other calorie-contributing foods before blending. TIP: New users should start with a 1-scoop half serving. Use post-workout and/or between meals to add calories, carbs, and protein to your healthy, balanced diet.
Certifications & Quality
Specs last updated: May 14, 2026







