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Optimum Nutrition Serious Mass Banana vs Optimum Serious Mass Cookies & Cream

Side-by-side comparison of scores, ingredients, prices and real customer feedback for Optimum Nutrition Serious Mass Banana and Optimum Serious Mass Cookies & Cream.

Last verified: 18 Feb 2026 · Based on 8 reviews

Our Verdict: Optimum Nutrition Serious Mass Banana or Optimum Serious Mass Cookies & Cream?

Both products are identical in score (70/100), price (£40), and nutritional profile — there is no meaningful winner here. The Cookies & Cream flavour suits those who prefer dessert-style shakes, while Banana appeals to fruit-flavour fans. Choose based purely on taste preference.

— AIScored Editorial Team

70.0
Score Summary

Optimum Nutrition Serious Mass Banana scores 70.0/100 vs Optimum Serious Mass Cookies & Cream at 70.0/100.

Optimum Nutrition Serious Mass Banana vs Optimum Serious Mass Cookies & Cream: What Does the Data Say?

Both of these are the same product in different flavours — Optimum Nutrition Serious Mass at 2.73kg for £40 each, scoring identically at 70/100. The formula is unchanged between the two: 1,250 kcal per serving, 50g protein, and 250g carbohydrates, with 12g of sugar. If you were hoping for a meaningful formula difference to help you choose, there isn't one.

The decision comes down entirely to taste preference. Banana tends to suit people who prefer lighter, fruit-based flavours and mix it with water or oat milk. Cookies & Cream is a richer, dessert-style flavour that reviewers consistently praise for its mixability — three out of four reviews mention it positively. If you're drinking 1,250-calorie shakes daily, flavour fatigue is real, so pick whichever you'd genuinely enjoy over several weeks.

Worth flagging for both: the high carbohydrate load can cause digestive discomfort for some people, particularly if taken in one go rather than sipped gradually.

How Do the Scores Compare?

Serious Mass Banana 2.73kg
Serious Mass Cookies & Cream 2.73kg
Serious Mass Banana 2.73kg
Serious Mass Banana 2.73kg
Optimum Nutrition
Serious Mass Cookies & Cream 2.73kg
Serious Mass Cookies & Cream 2.73kg
Optimum Nutrition
Overall Score 70.0 70.0
Effectiveness 80.0/100
Best
80.0/100
Best
Ingredient Quality 70.0/100
Best
70.0/100
Best
Value for Money 80.0/100
Best
80.0/100
Best
Side Effects 70.0/100
Best
70.0/100
Best
Certifications 30.0/100
Best
30.0/100
Best
Best Price £36.00 Holland & Barrett →
Cheapest
£36.00 Holland & Barrett →
Cheapest
Form powder powder
Dose None None
Third-Party Tested ✗ No ✗ No
Reviews Analysed 4 4

Serious Mass Banana 2.73kg

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

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

Hard-gainers seeking rapid calorie and protein intake Athletes with high metabolic demands Individuals needing convenient meal replacement Older adults (71+ demonstrated long-term use satisfaction) Those prioritizing taste and palatability
View full review →

Serious Mass Cookies & Cream 2.73kg

Pros

  • Excellent taste and mixability (mentioned in 3 of 4 reviews)
  • High calorie density (1,250 kcal per serving) supports rapid weight gain for hardgainers
  • 50g protein per serving aids muscle protein synthesis and recovery
  • Added 3g creatine monohydrate per serving (evidence-based for strength and muscle gains)

Cons

  • Extremely high sugar content (12g per serving) and 250g carbs may cause energy crashes or GI distress in sensitive individuals
  • Not third-party tested or certified (no NSF, Informed-Sport, or banned substance screening listed)
  • Contains common allergens (milk, soy, wheat, gluten) limiting accessibility
  • Very high serving size (336g per scoop) makes convenient dosing impractical; typically mixed with large volumes of liquid

Best For

Hardgainers and ectomorphs struggling to consume adequate calories Strength athletes and bodybuilders in caloric surplus phases Individuals with high-performance metabolisms requiring 3,000+ daily calories Post-workout recovery during bulking phases
View full review →

Score Breakdown: Optimum Nutrition Serious Mass Banana vs Optimum Serious Mass Cookies & Cream

Optimum Nutrition Serious Mass Banana Winner 70.0/100

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.

Effectiveness
Serious Mass Ban..
80.0/100
Serious Mass Coo..
80.0/100
Ingredient Quality
Serious Mass Ban..
70.0/100
Serious Mass Coo..
70.0/100
Value for Money
Serious Mass Ban..
80.0/100
Serious Mass Coo..
80.0/100
Side Effects
Serious Mass Ban..
70.0/100
Serious Mass Coo..
70.0/100
Certifications
Serious Mass Ban..
30.0/100
Serious Mass Coo..
30.0/100

What are the key differences?

Optimum Nutrition Serious Mass Banana is best for: Hard-gainers seeking rapid calorie and protein intake, Athletes with high metabolic demands
Optimum Serious Mass Cookies & Cream is best for: Hardgainers and ectomorphs struggling to consume adequate calories, Strength athletes and bodybuilders in caloric surplus phases

Frequently Asked Questions

Which is better, Optimum Nutrition Serious Mass Banana or Optimum Serious Mass Cookies & Cream?
Both products are identical in score (70/100), price (£40), and nutritional profile — there is no meaningful winner here. The Cookies & Cream flavour suits those who prefer dessert-style shakes, while Banana appeals to fruit-flavour fans. Choose based purely on taste preference. Optimum Nutrition Serious Mass Banana scores 70.0/100 overall while Optimum Serious Mass Cookies & Cream scores 70.0/100. Both score equally overall — the difference comes down to individual dimensions. Optimum Nutrition Serious Mass Banana is best suited for Hard-gainers seeking rapid calorie and protein intake and Athletes with high metabolic demands. Optimum Serious Mass Cookies & Cream is better for Hardgainers and ectomorphs struggling to consume adequate calories and Strength athletes and bodybuilders in caloric surplus phases.
Is Optimum Nutrition Serious Mass Banana worth the price compared to Optimum Serious Mass Cookies & Cream?
Optimum Nutrition Serious Mass Banana costs £36.00 while Optimum Serious Mass Cookies & Cream is £36.00. For value, Optimum Nutrition Serious Mass Banana scores 80.0/100 vs Optimum Serious Mass Cookies & Cream's 80.0/100. Both offer similar value for money.
Which has fewer side effects?
Optimum Nutrition Serious Mass Banana scores 70.0/100 for side effects (higher means fewer reported issues) while Optimum Serious Mass Cookies & Cream scores 70.0/100. Both have similar side effect profiles based on user reviews. For certification and testing, Optimum Nutrition Serious Mass Banana scores 30.0/100 vs Optimum Serious Mass Cookies & Cream's 30.0/100. Always consult a healthcare professional before starting any supplement.

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Disclaimer: AIScored provides data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.

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