Top 10 Best iron supplements in 2026

Last Updated - 6/8/2026

🏆Best Choice

THORNE

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Well-Absorbed Iron: Provides 25 mg of elemental iron per capsule in a non-constipating, well-absorbed form as iron bisglycinate
•Symptoms of Low Iron: Nearly 1 in 3 adults in the U.S. may have low iron levels, which can manifest as weakness, fatigue, shortness of breath, dizziness, drowsiness, irritability, infrequent menstruation, and more
•Blood Support: Dietary iron is essential for the formation of new red blood cells, especially important for women of childbearing age, after blood loss from surgery/injury, or for those who follow vegan/vegetarian diets*
•NSF Certified for Sport: Tested for compliance with label claims and to ensure the absence of nearly 300 substances banned by many major athletic organizations
•Trusted: Thorne is chosen by champions and trusted by 100+ professional sports teams, a proud partner of U.S. National Teams, and the #1 recommended clinical brand by health-care practitioners (2023 Health-Care Practitioner Seller Survey)

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$15.00

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Nature's Bounty

Nature’s Bounty Iron 65mg, 325 mg Ferrous Sulfate, Cellular Energy Support, Promotes Normal Red Blood Cell Production, 1 Serving Per Day, Gluten Free, 100 Vegetarian Tablets

9.6

ChoiceComparer.com Score

9.6

/ 10

Outstanding

Main highlights

•A NECESSARY COMPONENT OF HEMOGLOBIN Iron is a necessary component of hemoglobin; the oxygen carrier responsible for delivering oxygen to the cells; including muscle cells (1); Nature’s Bounty Iron helps promote normal red blood cell production (1)
•HELPS MAINTAIN ENERGY UTILIZATION (1) Iron supports energy utilization; helping you to feel your best (1)
•SUPPORTS WOMEN’S HEALTH (1) Everyone needs Iron; but pregnancy and menstruation may increase Iron requirements; Often recommended as a mineral supplement for women; Nature’s Bounty Iron offers the daily nutritional support you need (1)
•NECESSARY FOR OVERALL HEALTH Taking a daily Iron supplement with Ferrus Sulfate helps provide your body with the iron it needs for daily functioning (1)
•FROM THE TRUSTED WELLNESS EXPERTS Nature’s Bounty Iron is a product of 50 years of dedication to quality; consistency and scientific research to make vitamins and nutritional supplements of unrivaled excellence

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$5.45

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Vitron-C

Vitron-C Iron Supplement, Once Daily, High Potency Iron Plus Vitamin C, Support Red Blood Cell Production, Dye Free Tablets, 60 Count, 2 Pack

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Vitron-C is a high potency iron supplement for iron deficiency and supports red blood cell production*
•Iron pills boost energy by helping to fight fatigue in users with low iron levels
•Iron supplements for women and men contain 65 mg of elemental iron and 125 mg of Vitamin C to support a healthy immune system and to improve iron absorption
•Gentle iron absorption and helps minimize constipation with carbonyl iron using one iron pill daily
•Dye Free, gluten free, vegan with no artificial colors or flavors
•*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
•Contains 2 packs of Vitron-C High Potency Iron Supplement Plus Vitamin C, 60 tablets in each pack

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$19.11

$29.99

-36%

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21st Century

21st Century Slow Release Iron Tablets, 60 Count

9.3

ChoiceComparer.com Score

9.3

/ 10

Excellent

Main highlights

•Gluten free
•High potency formula
•Gentle on your system

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$3.36

$4.35

-23%

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Garden of Life

Garden of Life Vitamin Code Healthy Blood - Iron Supplement for Women, 60 Vegan Capsules, with Vitamins B, C, Trace Minerals, Fruit Veggies, Probiotics - for Energy and Anemia Support

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•BOOSTED IRON ABSORPTION: Vitamin Code RAW non-binding iron pills contain 28mg of gentle whole food iron and whole food vitamins C, B-6, and B-12 to support iron absorption and utilization
•PROBIOTICS AND ENZYMES: Our vegan iron supplement includes a RAW probiotic and enzyme blend for digestive support
•ENERGY SUPPLEMENT: Our iron vitamins support healthy hemoglobin levels, healthy blood circulation, healthy homocysteine metabolism, increased energy, improved physical performance, and skin health
•NATURAL COFACTORS: Vitamin Code iron supplements include a RAW Veggie Mineral Blend of 17 organically grown vegetables & 75 ancient soil based alkalizing trace minerals containing natural cofactors
•VEGAN VITAMIN: Our real food iron supplement is Non-GMO Project Verified and NSF Certified Gluten Free

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$13.29

$16.99

-22%

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Bronson

Bronson Iron Bisglycinate 25 mg Gentle on The Stomach, Supports Energy & Healthy Red Blood Cell Production - Non-Constipating Formula - Non GMO, 90 Vegetarian Capsules

9.0

ChoiceComparer.com Score

9.0

/ 10

Great

Main highlights

•Easy On The Stomach & Non-Constipating: Bronson’s Iron Bisglycinate provides 25 mg of non-constipating Iron per vegetarian capsule to support healthy red blood cell production.* Iron Bisglycinate 25 mg helps to combat potential iron deficiency by improving nutritional iron levels.
•Energy + Circulation: Iron Bisglycinate 25 mg helps to maintain healthy hemoglobin levels, blood circulation, energy levels, and more.* Each capsule provides Iron as Ferrous Bisglycinate Chelate, which has been shown to deliver a highly absorbable form of this key mineral.
•Superior Quality: Laboratory tested Non-GMO, Gluten-Free and Soy-Free. Bronson products are in-house tested and carefully manufactured by trained professionals in our state-of-the-art facility that is located in Hauppauge, New York.
•Trusted Since 1960: The pioneers of Bronson Vitamins were a group of pharmacists who witnessed the benefits of vitamins and mineral supplementation firsthand with their patients. Bronson Vitamins have been consistently mentioned by top medical professionals since our inception in 1960.

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$9.99

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NOW Foods

NOW Foods Supplements, Iron Complex, Non-Constipating*, Essential Mineral, 100 Tablets

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•ESSENTIAL MINERAL/BIOAVAILABLE SOURCE OF IRON: NOW Iron Complex is a unique blend of Ferrochel Iron (a bioavailable form of iron) and its important co-nutrients combined with complementary botanicals
•NON-CONSTIPATING*: This vegetarian formula is well-tolerated and non-constipating and has been designed to maximize Iron absorption and utilization by the body*
•CERTIFICATIONS/CLASSIFICATIONS: Non-GMO, Halal, Kosher, Dairy Free, Egg Free, Made without Gluten, Nut Free, Soy Free, Sugar Free, Vegan/Vegetarian
•GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
•Packaged in the USA by a family owned and operated company since 1968

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$7.99

$13.99

-43%

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Fusion Lifestyle

Fusion Lifestyle Iron Supplement for Women and Men, Watermelon Flavored Iron Soft Chew Plus Vitamin C for Iron Deficiency and Anemia, 1 Month Supply, 30 Count

8.7

ChoiceComparer.com Score

8.7

/ 10

Good

Main highlights

•Fusion Lifestyle soft chews contain 45 mg of iron per serving, plus 60 mg of vitamin c to boost iron absorption. Add iron supplements to your daily routine. Whether you're looking for an iron mineral supplement to boost your intake, or just adding to your wellness journey, these soft chewables are an excellent addition!
•The suggested use is to take 1 per day. Enjoy a sweet and fruity watermelon taste. There are 30 individually wrapped soft chews making it roughly a 1 month supply in each bottle.
•These soft chews are perfect for bariatric patients, those suffering from anemia, women, men, prenatal, postnatal, or anyone looking for an iron mineral supplement.
•We're a globally recognized nutraceutical company specializing in the development, manufacturing and distribution of safe, convenient and effective bariatric nutritional supplements.
•Proudly manufactured in the USA! We're committed to identifying best practices for lifestyle nutritional solutions. Our facility is GMP certified and conveniently located in Buffalo, NY.

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$19.99

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Nature's Truth

Nature's Truth Iron Supplement | 65mg | 120 Tablets | 325mg Ferrous Sulfate | Non-GMO & Gluten Free Pills

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•ESSENTIAL MINERAL: Receive 65 mg of high-potency Iron as Ferrous Sulfate per serving
•DAILY SUPPORT: One vegan-friendly coated tablet per day can fulfill your daily Iron needs
•HONEST & TRANSPARENT: Nature’s Truth is committed to delivering the best quality wellness products
•EXPERTS YOU CAN TRUST: Backed by three generations of Vitamin Innovators for unrivaled quality
•MADE WITHOUT: Gluten, Wheat, Yeast, Milk, Lactose, Artificial Flavor & Preservatives, and Non-GMO

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$6.69

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