Best iron mineral supplements, ranked

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AI-generated summary · updated July 29, 2026 · verify details before purchase.

1. 

   1 Best overall Feosol

   Feosol Original Ferrous Sulfate 65 mg

   ★★★★★4.6/5 $11.98

   High-dose ferrous sulfate with proven absorption and an affordable price point.

   • High elemental iron
   • Low cost

   • May cause stomach upset

   View on Amazon manufacturer site
2. 

   2 Best budget pick Nature Made

   Nature Made Iron 65 mg (Ferrous Gluconate)

   ★★★★☆4.5/5 $7.06

   Gentler on the stomach than ferrous sulfate while still delivering effective iron supplementation.

   • Gentle on stomach
   • Widely available

   • Lower iron content per tablet

   View on Amazon manufacturer site
3. 

   3 Best for sensitive stomach THORNE

   Thorne Iron Bisglycinate 28 mg

   ★★★★★4.7/5 $16.00

   Chelated iron bisglycinate that is highly absorbable with minimal GI discomfort.

   • High absorption
   • Low GI irritation

   • Higher price

   View on Amazon manufacturer site
4. 

   4 Best liquid form Floradix

   Floradix Iron + Herbs Liquid 10 mg/mL

   ★★★★☆4.4/5 $27.44

   A liquid iron supplement blended with herbal extracts for enhanced taste and tolerability.

   • Liquid easy to swallow
   • Contains vitamin C

   • Taste may not suit all

   View on Amazon manufacturer site
5. 

   5 Best heme iron Proferrin

   Proferrin ES (Heme Iron Polypeptide) 18 mg

   ★★★★☆4.5/5 $23.99 Only 1 left

   Heme iron source that mimics dietary iron absorption with minimal constipation.

   • Mimics dietary iron
   • Low constipation risk

   • Premium price

   View on Amazon manufacturer site
6. 

   6 Best for children SmartyPants

   SmartyPants Kids Iron Gummies 7 mg

   ★★★★☆4.3/5 $17.97

   Chewable iron gummies fortified with vitamin C and zinc, ideal for kids who dislike pills.

   • Kid-friendly taste
   • Includes vitamin C

   • Lower dose per serving

   View on Amazon manufacturer site
7. 

   7 Best slow-release Slow Fe

   Slow Fe Iron Polysaccharide 45 mg

   ★★★★☆4.4/5 $18.00

   Iron polysaccharide capsule that releases iron gradually, reducing GI irritation.

   • Slow release
   • Reduced nausea

   • Larger capsule

   View on Amazon manufacturer site

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