Serious Mass Chocolate Peanut Butter 2.73kg vs Serious Mass Cookies & Cream 2.73kg
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Serious Mass Chocolate Peanut Butter 2.73kg and Serious Mass Cookies & Cream 2.73kg.
Last verified: 07 Apr 2026 · Based on 8 reviews
Serious Mass Chocolate Peanut Butter 2.73kg scores 70.0/100 vs Serious Mass Cookies & Cream 2.73kg at 70.0/100. Serious Mass Chocolate Peanut Butter 2.73kg wins on certifications.
Which is better: Serious Mass Chocolate Pean... or Serious Mass Cookies & Cream 2.73kg?
Both products score identically at 70/100 for the same price, making this a flavour decision rather than a quality one. The Chocolate Peanut Butter variant edges ahead nutritionally with slightly higher calories per serving (1,263 vs 1,250 kcal) and added creatine monohydrate, giving it a practical advantage for hardgainers. Choose Cookies & Cream if you prioritise taste variety — reviewers consistently praised its flavour and mixability.
— AIScored Editorial Team
How Do the Scores Compare?
Serious Mass Chocolate Pean...
Optimum Nutrition
|
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 |
50.0/100
Best
|
30.0/100 |
| Best Price |
£40.00
Holland & Barrett →
Cheapest
|
£40.00
Holland & Barrett →
Cheapest
|
| Form | powder | powder |
| Dose | None | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 4 | 4 |
Serious Mass Chocolate Peanut Bu...
Pros
- ✓Extremely high calorie density (1,263 kcal/serving) designed specifically for muscle gain
- ✓Substantial protein content (50g per serving) with dual whey/casein blend for sustained release
- ✓Added creatine monohydrate (3g/serving) supports strength and performance
- ✓Complete micronutrient profile with 25 vitamins and minerals at therapeutic doses
Cons
- ✗Very high sugar content (26g per serving) unsuitable for those managing blood glucose
- ✗High sodium per serving (1.56g, 26% RDA) may concern sodium-sensitive individuals
- ✗Large serving size (334g powder + 710ml water) makes it inconvenient for on-the-go use
- ✗Contains multiple allergens: milk, soy, wheat, egg; not suitable for allergic individuals
Best For
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
What does the data say about Serious Mass Chocolate... vs Serious Mass Cookies &...?
These two products are, for all practical purposes, the same supplement in different flavours. Both are Optimum Nutrition's Serious Mass at £40 for 2.73kg, both score 70/100 overall, and both hit 80/100 for effectiveness and value. The meaningful nutritional differences are modest: the Chocolate Peanut Butter version delivers 1,263 kcal per serving compared to 1,250 kcal for Cookies & Cream, and carries a notably higher sugar figure of 26g per serving versus 12g. The Chocolate Peanut Butter variant also adds 3g of creatine monohydrate, which could be useful if you're not already supplementing creatine separately, and comes with a sodium warning at 1.56g per serving — worth noting if you're watching salt intake.
If blood glucose management or digestive sensitivity is a concern, the Cookies & Cream flavour looks slightly cleaner on paper despite its 250g total carbohydrate load. For someone already taking standalone creatine, that distinction disappears entirely, making it a pure flavour decision. The Chocolate Peanut Butter option may also be unsuitable for those with peanut allergies, which is an obvious but important practical point. Taste and mixability reviews for the Cookies & Cream version are consistently positive, but both products are substantial shakes that require a large blender or shaker to mix properly. If you're indifferent to flavour and already buying creatine, save yourself the sodium exposure and go Cookies & Cream. If you want the creatine included and enjoy peanut butter flavours, the other version gives you a marginal calorie bump for the same price.
Serious Mass is a high-calorie weight gain formula by Optimum Nutrition delivering 1,263 kcal and 50g protein per serving.
What are the key differences?
Frequently Asked Questions
Which is better, Serious Mass Chocolate Peanut Butter 2.73kg or Serious Mass Cookies & Cream 2.73kg? ▼
Is Serious Mass Chocolate Peanut Butter 2.73kg worth the price compared to Serious Mass Cookies & Cream 2.73kg? ▼
Which has fewer side effects? ▼
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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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