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  1. Ferrous - Wikipedia

  2. Ferrous Sulfate: Benefits, Uses, Side Effects, and More - Healthline

  3. Iron - Wikipedia

  4. Iron Supplement (Ferrous Sulfate) - Cleveland Clinic

  5. Iron Supplements: Benefits, Side Effects, Dosage, and More

  6. Iron | The Nutrition Source - Harvard T.H. Chan School of Public …

  7. Iron Supplements: How to Maximize Absorption - EatingWell

  8. Iron - Health Professional Fact Sheet - Office of Dietary …

  9. Iron(II) - Wikipedia

  10. Iron Supplementation - StatPearls - NCBI Bookshelf