We Tested 13 Iron in the UK — Scores, Reviews & Prices
We analysed 13 iron using currently available review and product data from public sources. We evaluate each product across six categories — effectiveness, ingredient quality, value for money, side effects, certifications, and overall score — so you can make an informed decision without spending hours reading individual reviews.
🏆 View Best Iron 2026 Rankings →What are the best iron in 2026?
According to the AIScored 0–100 scoring system, the highest-rated iron in the UK are: Thorne Iron Bisglycinate 25mg (84.0/100), Gentle Iron (Iron Bisglycinate) 20mg Vegetable 180 Capsules (82.0/100), Active Iron for Women 60 Capsules (80.0/100). Rankings are based on 13 products scored across effectiveness, ingredient quality, value for money, side effects, and certifications.
| Rank | Product | Brand | Score | Price |
|---|---|---|---|---|
| #1 | Thorne Iron Bisglycinate 25mg | Thorne | 84.0/100 | £16.99 |
| #2 | Gentle Iron (Iron Bisglycinate) 20mg Vegetable 180 Capsules | Solgar | 82.0/100 | £18.84 |
| #3 | Active Iron for Women 60 Capsules | Active Iron | 80.0/100 | £19.95 |
| #4 | 30 Capsules | Active Iron | 80.0/100 | £16.99 |
| #5 | Pregnancy 30 Tablets + 30 Capsules | Active Iron | 80.0/100 | £22.99 |
| #6 | Gentle Iron 20mg 90 Vegi Capsules | Solgar | 77.0/100 | £12.64 |
| #7 | Better You Iron Daily Oral Spray 25ml (Pack of 3) | BetterYou | 71.0/100 | £18.98 |
| #8 | Iron Tablets High Strength 14mg - 365 Tablets, 12 Mo... | Nutrition Geeks | 70.0/100 | £7.99 |
| #9 | Advance 25mg 30 Capsules | Active Iron | 70.0/100 | £19.99 |
| #10 | SmartKids Iron with Vitamin C 30 Strawberry Flavour Gummies | Bioglan | 70.0/100 | £8.00 |
13 products
Which iron rank highest in 2026?
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Thorne Iron Bisglycinate 25mg
Thorne
Thorne Iron Bisglycinate delivers 25 mg of elemental iron in the Ferrochel® chelated bisglycinate form, widely praised i...
Gentle Iron (Iron Bisglycinate) 20mg Vegetable 180 Capsules
Solgar
Solgar Gentle Iron is an iron bisglycinate supplement that stands out primarily for its exceptional gastrointestinal tol...
Active Iron for Women 60 Capsules
Active Iron
Active Iron for Women is a non-constipating iron supplement paired with B-complex vitamins, specifically formulated for ...
30 Capsules
Active Iron
Active Iron 30 Capsules is an iron supplement formulated for superior absorption and gastrointestinal tolerability, feat...
Pregnancy 30 Tablets + 30 Capsules
Active Iron
Active Iron Pregnancy is a dual-delivery prenatal supplement combining 25mg iron with a comprehensive micronutrient prof...
Gentle Iron 20mg 90 Vegi Capsules
Solgar
Solgar Gentle Iron delivers 20mg of ferrous bisglycinate per capsule, a chelated form of iron widely regarded as among t...
Better You Iron Daily Oral Spray 25ml (Pack of 3)
BetterYou
BetterYou Iron Daily Oral Spray is a well-regarded UK brand's oral spray delivering 5mg of iron per 4-spray dose, design...
Iron Tablets High Strength 14mg - 365 Tablets, 12 Months Supply - Vegan Iron Supplements for Women and Men - Ferrous Fumarate, Reduces Tiredness and Fatigue - UK Made Vitamin
Nutrition Geeks
Nutrition Geeks' 14mg Iron Tablets use ferrous fumarate, a well-absorbed form of iron, delivering 100% NRV per tablet in...
Advance 25mg 30 Capsules
Active Iron
Active Iron Advance 25mg is a high-strength iron supplement with a protein-based delivery system designed to improve abs...
SmartKids Iron with Vitamin C 30 Strawberry Flavour Gummies
Bioglan
SmartKids Iron with Vitamin C is a strawberry-flavoured gummy supplement by Bioglan designed for children aged 4 and ove...
Active Iron for Men 30 Capsules + 30 Tablets
Active Iron
Active Iron for Men is a combined iron and B-complex supplement specifically formulated for men's energy and cognitive s...
Iron Tablets High Strength - Energy Tablets with Vitamin C, B12 & Folic Acid - 120 Vegan Iron Supplements for Women and Men - 14mg - Enhanced Energy Support & Increased Absorption - UK Made
Nutrition Geeks
Nutrition Geeks Iron Energy+ delivers 14mg of iron per tablet alongside Vitamin C, B12, and Folic Acid in a compact, veg...
Kids Blackcurrant Flavour 30 Chewables
Active Iron
Active Iron Kids Blackcurrant is a chewable iron supplement with vitamin D designed for children with low iron levels. R...
What are the most popular uses for iron?
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How do the top iron compare head-to-head?
See all side-by-side comparisons between iron products.
How does AIScored compare iron?
We collect currently available review and product data from public sources to build a complete comparison baseline.
We read every review, check ingredient labels, fillers, and certifications, then generate an unbiased summary.
Products are scored 0-100 across evidence-based categories, making it easy to compare at a glance.
What should you look for when buying iron?
Choosing the right iron can be overwhelming with hundreds of options on the UK market. Here are the key factors we analyse when scoring each product:
Bioavailability & Forms
Not all ingredient forms are equally effective. We check which forms are used and whether they're backed by research for optimal absorption and bioavailability.
Clean Label & Fillers
Many products contain unnecessary fillers, artificial colours, added sugars, and bulking agents. We flag products with excessive additives and reward clean formulations.
Third-Party Testing
Independent lab testing verifies that what's on the label is actually in the product. Products with third-party certifications (NSF, USP, Informed Sport) score higher in our rankings.
Value per Serving
The cheapest option isn't always the best value. We calculate the cost per serving and weigh it against ingredient quality, dosage, and overall effectiveness reported by users.
How Our Scoring Works
Each product is scored 0-100 across evidence-based categories. An overall score of 80+ indicates a product we'd recommend to most people. Scores of 60-79 are solid choices with some trade-offs, while anything below 60 has significant drawbacks reported by users. Our scores are recalculated regularly as new reviews and ingredient data come in.
Frequently Asked Questions
Where do you get your reviews?
We aggregate publicly available review and product data from retailer pages, communities, and specialist sources. We do not use manufacturer-provided testimonials as evidence.
How often are scores updated?
We re-analyse reviews and update scores regularly. Product pages show the date of the latest analysis.
Do you receive products for free?
No. AIScored does not accept free products or sponsored placements. Our revenue comes from affiliate links, which do not influence our scores.
What is the best iron in 2026?
Based on our analysis of 13 products, the top rated iron is Thorne Iron Bisglycinate 25mg with a score of 84.0/100.
How many iron products have you reviewed?
We have analysed 13 iron products, scoring each on effectiveness, ingredient quality, value for money, side effects, and certifications.
What other categories are related to iron?
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Prices are updated regularly but may differ at the time of purchase. Affiliate links may earn us a commission at no extra cost to you.