Price History (90 days)
Quick Facts
- Form
- Tablets
- Dose
- 4000 IU (100mcg) Vitamin D3
- Serving
- 1 tablet
- Servings
- 120
- Vegan
- No
- Made in
- UK
Holland & Barrett Vitamin D3 4000 IU (100mcg) Tablets - 120 Count
by Holland & Barrett
Holland & Barrett's own-brand high-strength vitamin D3 tablet delivering 4000 IU (100mcg) per tablet at a budget-friendly price. The 120-count bottle provides four months' supply and is widely available across H&B's extensive UK store network. As a pressed tablet rather than an oil-based softgel, the formulation includes standard bulking agents and anti-caking agents. This is a no-frills, functional vitamin D product aimed at price-conscious consumers who want a higher-strength option from the UK's largest health food retailer.
AI Review Summary
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.
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
Watch Out
- !Take with a fatty meal to improve absorption of this fat-soluble vitamin
- !No oil carrier in the formulation — softgels may offer better bioavailability
Ingredients & Composition
Active Ingredients
- Vitamin D3 (Cholecalciferol)
- 4000 IU (100mcg)
Other Ingredients
Dicalcium Phosphate (bulking agent), Microcrystalline Cellulose (bulking agent), Silicon Dioxide (anti-caking agent), Magnesium Stearate (anti-caking agent)
Clean Label Analysis
Contains standard pharmaceutical excipients including dicalcium phosphate, MCC, magnesium stearate, and silicon dioxide. While all are GRAS and widely used, the formulation is noticeably less clean than oil-based softgel alternatives that avoid bulking agents entirely.
Quality & Testing
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.
Certifications
Additional Specifications
- Type
- Vitamin
- Form
- Tablets
- Dose
- 4000 IU (100mcg) Vitamin D3
- Serving Size
- 1 tablet
- Fillers Analysis
- Contains standard pharmaceutical excipients including dicalcium phosphate, MCC, magnesium stearate, and silicon dioxide. While all are GRAS and widely used, the formulation is noticeably less clean than oil-based softgel alternatives that avoid bulking agents entirely.
- Allergens
- Free from: dairy, gluten, soy, nuts, eggs, fish
- Made In
- UK
How We Score Supplements
Our AI analyses reviews from Reddit, Amazon, YouTube, and specialist forums, then scores each product on a 1-10 scale across six evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on aggregated user experiences.
Ingredient Quality
Bioavailable forms, clean label, minimal fillers, no artificial junk. Higher = cleaner.
Value for Money
Price per serving relative to ingredient quality and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 10 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.
Disclaimer: AIScored provides AI-generated 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.