Whey Protein Concentrate
Provides essential amino acids, including BCAAs, that support muscle protein synthesis and post-exercise recovery.
Optimum Nutrition14-day returns policy
Optimum Nutrition Serious Mass - Chocolate 6 LB
195.00
219.90
-11%New price(VAT incl.)
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Expires: Oct 2026
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- 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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Key Ingredients(5)
Creatine Monohydrate
Increases phosphocreatine stores in muscle, which may help regenerate ATP for short bursts of high-intensity effort.
Maltodextrin
Provides rapidly digestible carbohydrates that may help replenish muscle glycogen after training and contribute to a calorie surplus.
B Vitamins
Function as cofactors in energy metabolism, helping convert carbohydrates, fats, and proteins into usable cellular energy.
Electrolytes and Minerals
Contribute to fluid balance, nerve signaling, muscle contraction, and overall nutrient status.
Nutrition Facts
Nutrition Facts
8 servings per container
Serving Size2 Scoops (340g)
Amount Per Serving
Calories
% Daily Value*
Total Carbohydrate251g
Protein50g
* Percent Daily Values are based on a 2,000 calorie diet.
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
Informed Choice
Specs last updated: June 15, 2026
