Optimum Nutrition Serious Mass, Weight Gainer Protein Powder

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  • Ultimate muscle building and weight gain formula
  • 1,250 Calories per serving to maximize calorie intake
  • 50 Grams of protein per serving for muscle development
  • 252-254 Grams of carbohydrates for workout fuel
  • Includes creatine, glutamine, and 25 vitamins & minerals
  • Available in several delicious flavors
  • Free delivery for orders over $75

The Optimum NutritionSerious Mass is your go-to supplement for achieving your muscle-building and weight-gain goals, offering a powerful blend of calories, protein, and essential nutrients in delectable flavors. It’s designed to fuel your workouts, support muscle recovery, and help you scale your nutrition intake efficiently.

Manufacturer: Optimum Nutrition
Category: Mass Gainer

SKU: BBR199 Category: Brand:

Pros & Cons of Optimum Nutrition Serious Mass

What We Like …

  • High-calorie content aids in weight gain
  • Comprehensive blend of proteins, carbs, and essential nutrients
  • Supports muscle recovery and growth
  • Variety in flavor choices caters to different tastes
  • Easy to mix for a smooth, enjoyable shake

What Needs Improvement …

  • Large serving sizes may be challenging for some
  • Can be considered pricey compared to standard protein powders

Product Summary

The Optimum Nutrition Serious Mass is a heavyweight contender in the muscle gain supplement arena. This meticulously crafted formula is for anyone looking to seriously up their calorie and nutrient intake for muscle building and weight gain goals. This shake is designed to supercharge your calorie intake with 1,250 calories per serving, making it both manageable and delicious.

It also contains 50 grams of protein to support muscle maintenance and growth. It also contains creatine, glutamine, and 25 vitamins and minerals to aid in muscle recovery and overall health. Plus, with its wide range of flavors, you can choose the one that best suits your taste buds.

Serious Mass Optimum Nutrition Specs

Key Ingredients Protein Blend, Carbohydrates, Creatine Monohydrate, Glutamine, 25 Vitamins & Minerals
Serving Info 8/16 servings per pack
Flavor Banana, Chocolate, Chocolate Peanut Butter, Strawberry, Vanilla
Guarantee 30-days money-return guarantee
Dose 2 Scoops (340g)daily
Special Ingredients Creatine, Glutamine
Item Form Powder
Item Weight 6lb, 12lb
Type Mass gainer supplement

Asked A Questions for Optimum Nutrition Serious Mass

Q. How often should I take Serious Mass?

A. Use post-workout and/or between meals to support calorie and nutrient intake.

Q. Can Serious Mass help me gain muscle?

A. Yes, with 50 grams of protein per serving, it supports muscle building and maintenance.

Q. Is Serious Mass suitable for vegans?

A. Yes, there are vegan-friendly options available.

Q. Can I mix Serious Mass with something other than water?

A. Yes, for added calories and nutrients, mix with milk or blend with fruits, nuts, and peanut butter.

Q. Does Serious Mass contain sugar?

A. Serious Mass includes carbohydrates for energy, but it does not have added sugar.

Q. How much creatine in Optimum Nutrition Serious Mass?

A. One serving of Serious Mass typically contains around 5 grams of creatine monohydrate.

Q. Is Optimum Nutrition Serious Mass good?

A. The Serious Mass is a popular weight gainer with high calories and protein to support muscle building, but consult a doctor for personalized advice.

Q. How many servings in Optimum Nutrition Serious Mass?

A. A container of Serious Mass usually comes with around 8-16 servings, depending on the size you purchase.

Q. Does Optimum Nutrition Serious Mass work?

A. The Serious Mass can help with weight gain due to its high calorie and protein content, but results may vary depending on your diet and workout routine.

About the Brand

The Optimum Nutrition is dedicated to providing high-quality supplements that support individuals in achieving their fitness and health goals.

Optimum Nutrition

Owner: Glanbia Global Nutrition

The Optimum Nutrition is a trusted brand that offers top-notch protein powders, pre-workouts, and recovery drinks. From muscle-building whey to recovery-boosting amino acids, ON has science-backed solutions to optimize your workouts and results.

Shop the Brand


  1. Bryan Clinton

    I see some impressive results with Optimum Nutrition Serious Mass. It really helps me bulk up effectively. It mixes well, tastes good, and gives me all the nutrients I need for muscle growth. I take off one star because the serving size can be a bit much for some people, but overall, I highly recommend it for anyone serious about gaining mass.

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