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#10 in Protein Powders Third-Party Tested
Optimum Nutrition Serious Mass
by Optimum Nutrition
"1,250 calories and 50g protein per serving for serious weight gain"
Amazon Rating
4.5/5
Reviews
34,560
Price Range
$49.99 - $59.99
Servings
16
Informed SportGMP Certified
Overview
Serious Mass is the best-selling mass gainer, providing 1,250 calories and 50g protein per serving for hardgainers struggling to gain weight. The formula includes 252g carbohydrates, creatine, glutamine, and a vitamin/mineral blend. The 12-pound bag provides 16 massive servings.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Protein Blend | 50g |
| Carbohydrates | 252g |
| Creatine | Included |
| Glutamine | Included |
4 ingredients linked to detailed encyclopedia profiles
Pros & Cons
What We Like
- 1,250 calories per serving
- 50g protein
- Best-selling mass gainer
- Includes creatine and glutamine
What Could Be Better
- 252g carbs per serving (mostly maltodextrin)
- Very large serving size
- High sugar content
Who Is This For?
Best For
- Hardgainers
- Serious weight gain goals
- Bulking phases
- High-calorie needs
Not Ideal For
- Those watching carb intake
- Weight loss goals
- Those sensitive to maltodextrin
Our Verdict
7.8/10 — Good
The ultimate mass gainer for hardgainers. 1,250 calories and 50g protein per serving makes serious weight gain achievable.
Alternatives to Consider
No direct alternatives listed for this product yet.
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