Serious Mass Vanilla 1.34kg
by Optimum Nutrition
Optimum Nutrition Serious Mass is a high-calorie weight gain formula delivering 1260+ kcal per serving with 50g protein, 250g+ carbohydrates, and 3g creatine. Best for Hardgainers seeking to increase daily calorie intake and Strength athletes during bulking phases.
According to the AIScored 0–100 scoring system, Serious Mass Vanilla 1.34kg by Optimum Nutrition scores 70.0/100, ranking #12 out of 23 products in Mass Gainers (2026). Strongest category: Effectiveness (80.0/100). Weakest: Certifications (30.0/100).
Is Serious Mass Vanilla 1.34kg worth buying?
“If you need help hitting your calorie targets for weight gain, Serious Mass delivers 1260+ calories and 50g protein per serving in a format that actually tastes good. Reviewers consistently praise the vanilla flavour, which matters when you're going to be drinking this regularly as part of your routine.”
What Do Reviewers Say About Serious Mass Vanilla 1.34kg?
Sample excerpts from currently available source material used in this product analysis.
"Bestes Pulver von allen anderen Marken! Das ist das einzigste bei dem der Körper wirklich alles aufnimmt und für Masse ist das perfekt!"
How does Serious Mass Vanilla 1.34kg score?
Detailed score breakdown and key findings from our analysis of 6 reviews across 2 sources.
Pros
- +Excellent taste profile reported by reviewers ('delicious', 'really tasty')
- +High calorie density (1260+ kcal/serving) suitable for aggressive weight gain goals
- +Substantial protein content (50g/serving) supports muscle protein synthesis
- +Includes 3g creatine monohydrate per serving, a well-researched performance ingredient
- +Comprehensive micronutrient profile with 25 added vitamins & minerals
Cons
- -Not third-party tested; lacks independent verification of ingredient content and purity
- -Multiple potential allergens (egg, gluten, peanuts may be present)
- -Very high carbohydrate content (250g+/serving) may cause GI distress in sensitive individuals, especially when first starting
- -Large serving size (two scoops + 710ml water) may be inconvenient for some users
Best For
Watch Out
- !Allergen concerns: verify tolerances to egg, gluten, peanuts before use
- !GI tolerance: large carbohydrate volume may cause bloating, gas, or digestive upset—start with half serving
- !Limited third-party testing—no independent verification of label claims
- !High sugar content (typical for weight gainers); not suitable for low-carb or diabetes-management protocols
What is Serious Mass Vanilla 1.34kg?
Serious Mass Vanilla 1.34kg is a mass gainers product by Optimum Nutrition, scoring 70.0/100 on AIScored.
- • What Is It: Optimum Nutrition Serious Mass is an ultimate weight gain formula that boosts daily calorie intake; it delivers more than 1260 kcal per serving, with 50g protein to support muscle growth and repair, + 25 vitamins & supplements and 3g creatine.
- • Key Benefits: Delivers more than 1260 kcal per serving to assist in achieving the calorie surplus required for weight gain.
- • Provides 50g protein per serving to support growth and maintenance of muscle mass alongside resistance training.
- • Supplies over 250g carbohydrates per serving to aid recovery and help replenish muscle glycogen after intense exercise.
- • Includes 3g added creatine per serving to support performance during high‑intensity exercise and 25 vitamins & supplements.
- • How To Use: Add two heaped scoops to a blender with 710 ml water; blend 45–60 seconds, add ice and, if desired, other calorie‑contributing ingredients and blend a further 30–45 seconds.
- • New users may start with 1/2 serving for the first week then increase; take 1/2–1 serving between meals, 30–45 minutes post‑workout or 45–60 minutes before bed.
- • Key Ingredients: 50g protein per serving to support muscle growth and repair; over 250g carbohydrates per serving to aid glycogen replenishment after intensive exercise; 3g added creatine per serving to support high‑intensity performance, plus 25 vitamins & supplements.
Is Serious Mass Vanilla 1.34kg Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
How Does Serious Mass Vanilla 1.34kg Compare?
See how this product stacks up against the top-rated mass gainers in our database.
| Product | Score | Price |
|---|---|---|
| Serious Mass Vanilla 1.34kg (this) | 70.0 | £21.00 |
| Critical Mass Professional Lean ... | 80.0 | £40.00 |
Price History (90 days)
Quick Facts
- Vegan
- No
Frequently Asked Questions
Is Serious Mass Vanilla 1.34kg worth buying in 2026? ▼
What is the best price for Serious Mass Vanilla 1.34kg in the UK? ▼
What are the pros and cons of Serious Mass Vanilla 1.34kg? ▼
Is Serious Mass Vanilla 1.34kg third-party tested? ▼
How does Serious Mass Vanilla 1.34kg compare to Critical Mass Professional Lean Mass Gainer Banana 2.4kg (16 Servings)? ▼
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
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