Optimum Nutrition Marshmallow Crunch Bar vs Optimum Nutrition Chocolate Brownie Bar
Side-by-side comparison of scores, ingredients, prices and real customer feedback for Optimum Nutrition Marshmallow Crunch Bar and Optimum Nutrition Chocolate Brownie Bar.
Last verified: 01 Mar 2026 · Based on 15 reviews
Optimum Nutrition Marshmallow Crunch Bar scores 80.0/100 vs Optimum Nutrition Chocolate Brownie Bar at 40.0/100. Optimum Nutrition Marshmallow Crunch Bar wins on effectiveness, ingredient quality, value for money.
How Do the Scores Compare?
Marshmallow Crunch Protein Bar 65g
Optimum Nutrition
|
Chocolate Brownie Crunch Pr...
Optimum Nutrition
|
|
|---|---|---|
| Overall Score | 80.0 | 40.0 |
| Effectiveness |
80.0/100
Best
|
57.0/100 |
| Ingredient Quality |
70.0/100
Best
|
38.0/100 |
| Value for Money |
80.0/100
Best
|
44.0/100 |
| Side Effects |
80.0/100
Best
|
32.0/100 |
| Certifications |
30.0/100
Best
|
22.0/100 |
| Best Price |
£2.20
Amazon UK →
Cheapest
|
£2.75 Holland & Barrett → |
| Form | Bar | Bar |
| Dose | None | None |
| Third-Party Tested | ✗ No | ✗ No |
| Reviews Analysed | 4 | 11 |
Marshmallow Crunch Protein Bar 65g
Pros
- ✓Excellent taste and texture - all reviewers specifically commended flavor profile
- ✓High protein content (20g) with no added sugar, supporting muscle support goals
- ✓Competitively priced compared to other premium protein bar brands
- ✓Vegetarian-friendly formula
Cons
- ✗Contains multiple major allergens (gluten, milk, eggs, nuts, soy, peanuts) - unsuitable for those with allergies or severe intolerances
- ✗Not third-party tested - no independent verification of nutrient claims or purity
- ✗Not vegan - contains animal-derived ingredients, limiting accessibility
- ✗Contains naturally occurring sugars despite 'no added sugar' marketing - total sugar content not disclosed in reviews
Best For
Chocolate Brownie Crunch Protein Bar 65g
Pros
- ✓Delivers a solid 20g of protein per bar — well-suited to post-workout or high-protein snacking goals
- ✓No added sugar, making it compatible with low-sugar dietary targets
- ✓From a globally recognised and long-established sports nutrition brand
- ✓Suitable for vegetarians
Cons
- ✗Texture widely criticised as dry, hard, and chalky — a polarising issue across reviews
- ✗Artificial sweetener aftertaste reported as overpowering by several buyers
- ✗Sugar alcohols caused immediate and severe digestive distress in at least one reviewer
- ✗Contains seed oils and multiple common allergens (milk, soy, wheat, oat); allergen labelling flagged as inadequate by one reviewer
Best For
Score Breakdown: Optimum Nutrition Marshmallow Crunch Bar vs Optimum Nutrition Chocolate Brownie Bar
Optimum Nutrition's Marshmallow Crunch Protein Bar is a 20g protein bar with white chocolate and marshmallow flavour, receiving unanimous 5-star ratings from all 4 Holland & Barrett reviewers.
What are the key differences?
Frequently Asked Questions
Which is better, Optimum Nutrition Marshmallow Crunch Bar or Optimum Nutrition Chocolate Brownie Bar? ▼
Is Optimum Nutrition Marshmallow Crunch Bar worth the price compared to Optimum Nutrition Chocolate Brownie Bar? ▼
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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