![Microbiology Research | Free Full-Text | Oral Iron Supplementation—Gastrointestinal Side Effects and the Impact on the Gut Microbiota Microbiology Research | Free Full-Text | Oral Iron Supplementation—Gastrointestinal Side Effects and the Impact on the Gut Microbiota](https://pub.mdpi-res.com/microbiolres/microbiolres-12-00033/article_deploy/html/images/microbiolres-12-00033-g002.png?1623495866)
Microbiology Research | Free Full-Text | Oral Iron Supplementation—Gastrointestinal Side Effects and the Impact on the Gut Microbiota
![Amazon.com: Feosol Original Iron Supplement Tablets, Non-heme, 325mg Ferrous Sulfate (65mg Elemental Iron) per Iron Pill, 1 Per Day, 120ct, 4 Month Supply, For Energy and Immune System Support, Made in USA : Amazon.com: Feosol Original Iron Supplement Tablets, Non-heme, 325mg Ferrous Sulfate (65mg Elemental Iron) per Iron Pill, 1 Per Day, 120ct, 4 Month Supply, For Energy and Immune System Support, Made in USA :](https://m.media-amazon.com/images/I/81Dn4QHXXJL._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Feosol Original Iron Supplement Tablets, Non-heme, 325mg Ferrous Sulfate (65mg Elemental Iron) per Iron Pill, 1 Per Day, 120ct, 4 Month Supply, For Energy and Immune System Support, Made in USA :
![Spring Valley Slow Release Iron General Wellness Dietary Supplement Tablets, 45 mg, 30 Count - Walmart.com Spring Valley Slow Release Iron General Wellness Dietary Supplement Tablets, 45 mg, 30 Count - Walmart.com](https://i5.walmartimages.com/asr/61985089-036c-4d11-8462-25e7bd7ca17f.dd01144a52a6d0accecccb77b3e3bc18.jpeg)
Spring Valley Slow Release Iron General Wellness Dietary Supplement Tablets, 45 mg, 30 Count - Walmart.com
![Amazon.com: Maxi Health Iron Supplement 15mg Per ML – Increase Energy and Blood Levels Without Nausea or Constipation – Liquid Iron Drops for Men, Women, and Kids – 2 oz. (2 oz, Amazon.com: Maxi Health Iron Supplement 15mg Per ML – Increase Energy and Blood Levels Without Nausea or Constipation – Liquid Iron Drops for Men, Women, and Kids – 2 oz. (2 oz,](https://m.media-amazon.com/images/I/71T5yzuLNUL.jpg)
Amazon.com: Maxi Health Iron Supplement 15mg Per ML – Increase Energy and Blood Levels Without Nausea or Constipation – Liquid Iron Drops for Men, Women, and Kids – 2 oz. (2 oz,
![MegaFood Blood Builder - Iron Supplement Clinically Shown to Increase Iron Levels without Side Effects - Energy Support with Iron, Vitamins C and B12, and Folic Acid - Vegan - 60 Tabs - Walmart.com MegaFood Blood Builder - Iron Supplement Clinically Shown to Increase Iron Levels without Side Effects - Energy Support with Iron, Vitamins C and B12, and Folic Acid - Vegan - 60 Tabs - Walmart.com](https://i5.walmartimages.com/asr/ae04a0cf-0938-4718-bb5a-b43126e9bffc.81f1fdf8a5ca0ffe4da6a602fd679db9.jpeg)