Optimum Nutrition Opti-Men Multivitamin - 150 Tablets vs Holland & Barrett Vitamin D3 4000 IU (100mcg) Tablets - 120 Count
Side-by-side AI analysis based on real user reviews from Reddit, Amazon, YouTube & more.
Score Comparison
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Optimum Nutrition Opti-Men ...
Optimum Nutrition
|
Holland & Barrett Vitamin D...
Holland & Barrett
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|---|---|---|
| Overall Score | 6 | 7 |
| Effectiveness | 6/10 |
7/10
Best
|
| Ingredient Quality |
5/10
Best
|
5/10
Best
|
| Value for Money | 5/10 |
9/10
Best
|
| Side Effects | 7/10 |
9/10
Best
|
| Certifications |
9/10
Best
|
4/10 |
| Best Price | £27.99 |
£6.99
Cheapest
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| Form | Tablets | Tablets |
| Dose | 75+ ingredients per 3-tablet serving | 4000 IU (100mcg) Vitamin D3 |
| Third-Party Tested | ✓ Yes | ✗ No |
| Reviews Analysed | 2 | 3 |
Optimum Nutrition Opti-Men Multi...
Pros
- +Informed Sport certified — safe for drug-tested athletes
- +Solid core vitamin and mineral doses
- +Brand recognition and widespread UK availability
- +Includes fruit, vegetable, and botanical blends
Cons
- -Proprietary blends hide individual ingredient doses
- -Uses cheaper B-vitamin forms (cyanocobalamin not methylcobalamin)
- -Three tablets per serving is inconvenient and the tablets are large
Best For
Holland & Barrett Vitamin D3 400...
Pros
- +Lowest price per serving in the vitamin D3 category
- +High 4000 IU dose in a single tablet
- +120-count bottle lasts 4 months
- +Widely available across all Holland & Barrett stores
Cons
- -Multiple bulking agents and anti-caking agents compared to cleaner alternatives
- -Tablet format without oil carrier may reduce fat-soluble absorption
- -Large, chalky tablets that some find unpleasant to swallow
Best For
AI Comparison Analysis
Optimum Nutrition Opti-Men Multivitamin - 150 Tablets vs Holland & Barrett Vitamin D3 4000 IU (100mcg) Tablets - 120 Count
Optimum Nutrition Opti-Men Multivitamin - 150 Tablets: Optimum Nutrition Opti-Men is a popular sports multivitamin with an impressive 75+ ingredient count, though the proprietary blend approach means many of those ingredients — particularly the amino acids and botanical extracts — are present in doses too small to be individually effective. The core vitamin and mineral profile is decent, and the Informed Sport certification is valuable for competitive athletes. However, the three-tablet-per-day serving, use of cheaper B-vitamin forms (cyanocobalamin, pyridoxine HCl), and premium price make it harder to justify versus more transparent alternatives.
Scores: effectiveness: 6/10, ingredient_quality: 5/10, value_for_money: 5/10, side_effects: 7/10, certifications: 9/10, overall: 6/10
Holland & Barrett Vitamin D3 4000 IU (100mcg) Tablets - 120 Count: Holland & Barrett's Vitamin D3 4000IU is a functional, affordable option that delivers an effective dose at the lowest price in its category. User blood test results confirm it works for raising vitamin D levels. However, the tablet format with bulking agents is less elegant than oil-based softgels, and absorption may be somewhat reduced without a lipid carrier. It is best suited for budget-conscious consumers who prioritise price over formulation quality.
Scores: effectiveness: 7/10, ingredient_quality: 5/10, value_for_money: 9/10, side_effects: 9/10, certifications: 4/10, overall: 7/10
Disclaimer: AIScored provides AI-generated comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.