Serious Mass Banana 2.73kg
by Optimum Nutrition
Compare Prices
Serious Mass is a high-calorie weight gain formula by Optimum Nutrition containing 1,250 calories and 50g protein per serving, designed for individuals with fast metabolisms or difficulty consuming enough calories through food alone. Best for Hard-gainers seeking rapid calorie and protein intake and Athletes with high metabolic demands.
According to the AIScored 0–100 scoring system, Serious Mass Banana 2.73kg by Optimum Nutrition scores 70.0/100, ranking #7 out of 23 products in Mass Gainers (2026). Strongest category: Effectiveness (80.0/100). Weakest: Certifications (30.0/100).
Is Serious Mass Banana 2.73kg worth buying?
“Serious Mass is ideal if you're a hard gainer — the 1,250 calories and 50g protein per serving actually makes reaching your daily intake easier without constant eating. The banana flavour genuinely tastes good, and at 70/100, it's a straightforward, no-nonsense gainer that delivers what you need.”
What Do Reviewers Say About Serious Mass Banana 2.73kg?
Sample excerpts from currently available source material used in this product analysis.
"One word says it all "Marvellous". First class, does exactly what is stipulated on container, I find the 5.4kgs sufficient for all the nutrients one needs to stay well and if needed for a controlled modern lifestyle, I am 71 yrs old and fin..."
How does Serious Mass Banana 2.73kg score?
Detailed score breakdown and key findings from our analysis of 4 reviews across 1 source.
Pros
- +Excellent taste (specifically noted as 'tasty' and 'marvellous')
- +High calorie density (1,250 kcal per serving) efficiently supports weight gain goals
- +Substantial protein content (50g per serving) supports muscle building and repair
- +Good value for money at current pricing
- +Includes 3g creatine monohydrate per serving for performance support
Cons
- -Very high sugar content (12g per serving) may be concerning for some users
- -Not third-party tested or certified
- -High sodium per serving (1.48g salt) may be problematic for sodium-sensitive individuals
- -Contains multiple allergens (milk, soy, gluten possible) limiting suitability for those with common allergies
Best For
Watch Out
- !Not suitable for dairy-free, soy-free, or gluten-sensitive diets
- !High sugar and sodium per serving—monitor if managing blood sugar or hypertension
- !Lacks third-party testing or NSF/Informed Sport certification
- !Very large serving size (30g powder) requires adequate mixing equipment
What is Serious Mass Banana 2.73kg?
Serious Mass Banana 2.73kg is a mass gainers product by Optimum Nutrition in powder form, scoring 70.0/100 on AIScored.
- • SUPPORTS MUSCLE BUILDING & WEIGHT GAIN1,250 CALORIES* – HELPS BOOST CALORIE INTAKE50 g▲ SOURCE OF PROTEIN – HELPS BUILD AND MAINTAIN MUSCLE▪Serious weight gain requires serious calories.
- • However, those who need the extra calories most often have the toughest time consuming enough of them.
- • For many aspiring to be bigger, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone.
- • Serious Mass is the ultimate in weight gain formulas.With 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates helping support muscle recovery , and now with 3g added Creatine to support performance per serving, you’ve got nothing to lose and lots to gain.
- • It is time to stop thinking small and get serious – SERIOUS MASS®.
What's Inside Serious Mass Banana 2.73kg?
Serious Mass Banana 2.73kg contains 36 active ingredients: Per, Fat, of which saturates, Carbohydrates and more.
Active Ingredients
- Per
- 100g / Per 30g Serving : Energy 1574kJ / 5273kJ / 376kcal / 1260kcal
- Fat
- 1.9g / 6.3g
- of which saturates
- 1.0g / 3.5g
- Carbohydrates
- 75g / 250g
- of which sugars
- 3.7g / 12g
- Protein
- 15g / 50g
- Salt
- 0.44g / 1.48g
- Vitamin E
- 2.7 mg / 9.0 mg
- Vitamin C
- 19 mg / 63 mg
- Thiamin
- 0.27 mg / 0.90 mg
- Riboflavin
- 0.34 mg / 1.1 mg
- Niacin
- 4.0 mg / 13 mg
- Pantothenic Acid
- 1.3 mg / 4.5 mg
- Calcium
- 230 mg / 770 mg
- Phosphorus
- 160 mg / 536 mg
- Magnesium
- 0.60 mg / 2.0 mg
- Iron
- 4.2 mg / 14 mg
- Zinc
- 3.0 mg / 10 mg
- Copper
- 0.30 mg / 1.0 mg
- Manganese
- 0.60 mg / 2.0 mg
- Fluoride
- 0.87 mg / 2.9 mg
- Creatine
- 0.9 g / 3.0 g Macro Nutrient table: Energy Kcal per 100g 376Kcal
- Energy kJ per
- 100g 1574kJ
- Fats per
- 100g 1.9g
- Of which Saturates per
- 100g 1g
- Carbohydrates per
- 100g 75g
- Sugar per
- 100g 3.7g
- Protein per
- 100g 15g
- Salt per
- 100g 0.44g
- Fats per serving
- 6.3g
- Of which Saturates per serving
- 3.5g
- Carbohydrates per serving
- 250g
- Sugar per serving
- 12g
- Protein per serving
- 50g
- Salt per serving
- 1.48g
- Serving size
- 30g
Other Ingredients
Corn, Maltodextrin, WHEY Protein Concentrate [MILK] (Emilsifier: Lecithin [SOY]), Flavourings [MILK], Creatine Monohydrate, MILK Mineral Complex, Minerals (Magnesium, Iron, Zinc, Manganese, Fluoride, Selenium, Iodine, Copper, Molybdenum, Chromium), Salt, Vitamins (C, E, B3, A, B5, B7, B12, B9, D, B6, B1, K, B2), Stabilisers (Cellulose Gum, Guar Gum, Carrageenan), Sweetener (Sucralose), Colour (Riboflavins). For Allergens - See ingredients in bold.May contain gluten, eggs, nuts, an
Is Serious Mass Banana 2.73kg 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 Banana 2.73kg Compare?
See how this product stacks up against the top-rated mass gainers in our database.
| Product | Score | Price |
|---|---|---|
| Serious Mass Banana 2.73kg (this) | 70.0 | £40.00 |
| Critical Mass Professional Lean ... | 80.0 | £40.00 |
Price History (90 days)
Quick Facts
- Form
- powder
- Serving
- 1 serving
- Vegan
- No
Frequently Asked Questions
Is Serious Mass Banana 2.73kg worth buying in 2026? ▼
What is the best price for Serious Mass Banana 2.73kg in the UK? ▼
What are the pros and cons of Serious Mass Banana 2.73kg? ▼
Is Serious Mass Banana 2.73kg third-party tested? ▼
How does Serious Mass Banana 2.73kg 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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