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Top rated iron mineral supplements

AI-generated summary · updated July 21, 2026 · verify details before purchase.

  1. Best overall

    Feosol Original Ferrous Sulfate 65 mg

    4.6/5 $10-$15

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

    • High elemental iron
    • Low cost
    • May cause stomach upset
  2. Best budget pick

    Nature Made Iron 65 mg (Ferrous Gluconate)

    4.5/5 $8-$12

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

    • Gentle on stomach
    • Widely available
    • Lower iron content per tablet
  3. Best for sensitive stomach

    Thorne Iron Bisglycinate 28 mg

    4.7/5 $20-$30

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

    • High absorption
    • Low GI irritation
    • Higher price
  4. Best liquid form

    Floradix Iron + Herbs Liquid 10 mg/mL

    4.4/5 $15-$20

    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
  5. Best heme iron

    Proferrin ES (Heme Iron Polypeptide) 18 mg

    4.5/5 $25-$35

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

    • Mimics dietary iron
    • Low constipation risk
    • Premium price
  6. Best for children

    SmartyPants Kids Iron Gummies 7 mg

    4.3/5 $12-$18

    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
  7. Best slow-release

    Slow Fe Iron Polysaccharide 45 mg

    4.4/5 $18-$25

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

    • Slow release
    • Reduced nausea
    • Larger capsule

Buying advice

Choose an iron supplement based on the form (ferrous sulfate, gluconate, bisglycinate, heme, or polysaccharide), dosage needs, and tolerance. Chelated and heme options are gentler on the stomach but cost more, while traditional ferrous salts are inexpensive but may cause constipation. Liquid or gummy formats help with adherence for children or those who dislike pills. Pair iron with vitamin C for better absorption and avoid taking with calcium-rich foods or antacids.

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