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Iron Supplement Comparison - July 2025
| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3  9.6Exceptional | 4 Best Value  9.5Excellent | 5  9.4Excellent | 6  9.3Excellent | 7  9.2Excellent |
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ModelMegaFood Blood Builder Minis - Iron Supplement Clinically Shown to Increase Iron Levels Without Side Effects - with Vitamin C, Vitamin B12 & Folic Acid - Vegan - 72 Tablets (36 Servings) | Model Slow Fe 45mg Iron Supplement for Iron Deficiency, Slow Release, High Potency, Easy to Swallow Tablets - 60 Count | Model THORNE Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Capsules | Model 21st Century Slow Release Iron Tablets, 60 Count | Model Vitron-C Iron Supplement, Immunity Support Iron Supplements with Vitamin C, Iron Pills for Immune Support, 60 Count | Model Nature's Bounty Iron 65mg, 325 mg Ferrous Sulfate, Cellular Energy Support, Promotes Normal Red Blood Cell Production, 100 Tablets | Model NOW Foods Supplements, Iron 18 mg, Non-Constipating*, Essential Mineral, 120 Veg Capsules |
BrandMegaFood | Brand Slow Fe | Brand THORNE | Brand 21st Century | Brand Vitron-C | Brand Nature's Bounty | Brand NOW Foods |
Reviews | Reviews | Reviews | Reviews  | Reviews | Reviews | Reviews |
Features | ||||||
Simple to consume 9.9 | Simple to consume 9.8 | Simple to consume 9.8 | Simple to consume 9.9 | Simple to consume 9.6 | Simple to consume 9.4 | Simple to consume 9.8 |
Absorbency 9.6 | Absorbency 9.4 | Absorbency 9.4 | Absorbency 9.4 | Absorbency 9.3 | Absorbency 9.1 | Absorbency 9.6 |
Flavor 8.6 | Flavor 9.3 | Flavor 9.4 | Flavor 9.4 | Flavor 8.6 | Flavor 7.7 | Flavor 9.1 |
Worth the money 9.6 | Worth the money 9.4 | Worth the money 9.6 | Worth the money 9.8 | Worth the money 9.4 | Worth the money 9.9 | Worth the money 9.6 |
Tech Specs | ||||||
product dimensions- | product dimensions 1 x 3.25 x 4.38 inches 1.45 ounces | product dimensions 2.09 x 2.09 x 3.72 inches 0.32 ounces | product dimensions 5 x 5 x 5 inches 1.76 ounces | product dimensions 1.38 x 3.31 x 4.38 inches 2.08 ounces | product dimensions 6 x 4 x 4 inches 2.08 ounces | product dimensions 2 x 2 x 4.5 inches 1.6 ounces |
Review | Review | Review | Review | Review | Review - | Review - |
Available On  | Available On | Available On | Available On | Available On | Available On | Available On  |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1MegaFoodMegaFood Blood Builder Minis - Iron Supplement Clinically Shown to Increase Iron Levels Without Side Effects - with Vitamin C, Vitamin B12 & Folic Acid - Vegan - 72 Tablets (36 Servings)
9.9 simple to consume9.6 Absorbency9.6 worth the moneyWhy we love it
Increases energy without constipation.
Suitable for vegans and vegetarians.
Easy to swallow mini tablets.
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9.7
2Slow Fe
Slow Fe 45mg Iron Supplement for Iron Deficiency, Slow Release, High Potency, Easy to Swallow Tablets - 60 Count
9.8 simple to consume9.4 Absorbency9.4 worth the moneyWhy we love it
Reduces stomach discomfort effectively.
Controlled release for gentle absorption.
Easy-to-swallow tablets.
-
9.6
3THORNE
THORNE Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Capsules
9.8 simple to consume9.6 worth the money9.4 AbsorbencyWhy we love it
Gentle on the stomach.
Certified for athletes.
Effective at reasonable dosage.
Our ranking system
At BestChoice.com, our team curates a selection of top products from a vast array available online, using a sophisticated ranking system based on carefully defined criteria.While traditional hands-on testing has its merits, our use of AI technology offers distinct advantages. AI allows us to process and analyze vast amounts of data from multiple sources, providing a comprehensive view that goes beyond what manual testing can achieve. This approach enables us to deliver insights that are aligned with current trends and consumer preferences, ensuring our reviews are both relevant and up-to-date.
Features
Our AI-driven analysis examines key attributes, capabilities, and other critical factors tailored to each product category. This method allows us to assess effectiveness from various perspectives, ensuring a well-rounded evaluation.
Consumer Reviews
We aggregate and evaluate consumer feedback from across the internet, giving weight to ratings and reviews that reflect the most reliable insights. AI enhances this process by filtering and prioritizing data, offering a balanced view without the need for direct personal endorsements.
Popularity
Our system also considers the popularity of products, analyzing factors such as market presence, reputation, and user satisfaction. By leveraging AI, we capture a comprehensive picture of a product's standing in the market, which may not always be evident through traditional testing.
Value for money
AI allows us to compare products based on attributes like price, specifications, and user feedback, helping to determine their value for money. This data-driven approach offers an efficient and reliable way to assess how products stack up against one another in terms of cost-effectiveness.
