Description
Serious Mass – The Ultimate Mass Gainer by Optimum Nutrition
When you’re ready to take your size and strength goals seriously, there’s no better fuel than Optimum Nutrition Serious Mass—the powerhouse formula for extreme muscle gain and weight growth.
With over 1,250 calories per serving, 50g of premium protein, 250g+ of carbohydrates, and 25 essential vitamins and minerals, Serious Mass delivers the high-calorie support hard-gainers need to break through plateaus. Now fortified with 3g of creatine, it further supports performance, muscle energy, and recovery.
Serious Mass is perfect for athletes, bodybuilders, and anyone with a fast metabolism or demanding training regimen. Use it between meals, post-workout, or even before bed for consistent calorie and nutrient delivery.
Key Benefits:
1,250+ calories per serving for mass building
50g of blended protein for muscle support and repair
250g+ complex carbs for energy replenishment
3g of added creatine for strength and performance
25 vitamins and minerals to support overall wellness
Easy-to-mix formula in delicious flavors
Suggested Use:
Mix 2 scoops (334g) with 710ml of water. Use post-workout, between meals, or before bed to meet your daily calorie needs.
Stop thinking small. Start gaining big with Serious Mass.
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