Does ferrous sulfate cause weight gain? 

Does ferrous sulfate cause weight gain? 

No, ferrous sulfate does not cause weight gain. Iron supplements have nothing to do with your body weight or the way your body burns fat. It is not even listed as a rare side effect of ferrous sulfate. 

If you’re gaining weight and think your iron supplement has something to do with it, it doesn’t. You might be gaining weight because of one or more of the following reasons:

  • Poor and unhealthy diet
  • Excessive intake of carbonated or sweet beverages 
  • Sedentary lifestyle or lack of physical activity 
  • Any underlying health condition like an underactive thyroid gland (Hypothyroidism) 
  • Use of some other medication that may cause weight gain as a side effect 

Clinical uses and reported side effects of Ferrous sulfate

Ferrous sulfate is a medication commonly used to treat or prevent iron deficiency anaemia (1,2). Iron is responsible for the production of red blood cells, which carry oxygen throughout the body. When the body lacks sufficient iron, it can lead to symptoms such as fatigue, weakness, and pale skin. 

Ferrous sulfate works by providing the body with the necessary iron to restore normal red blood cell production and improve overall iron levels. It is typically prescribed by healthcare professionals based on the individual’s specific iron needs.

Ferrous sulfate is associated with some commonly experienced side effects, which are usually mild and can often be managed by taking the medication with food or adjusting the dosage. These include: (3)

  • Nausea 
  • Vomiting 
  • Stomach upset
  • Constipation 

In rare cases, more serious side effects may occur, such as severe allergic reactions, black or bloody stools, or stomach pain. It is important to seek immediate medical attention if any of these rare side effects occur.

Make sure you use such supplements as properly as you can. Always check the expiry dates of your supplements before you take them and avoid taking them with anything that can affect their absorption or effectiveness- like incompatible medications or excessive alcohol

Final words

To sum up, Ferrous sulfate has nothing to do with your body weight. It’s an iron supplement used to maintain haemoglobin levels in your blood. However, proper use of Ferrous sulfate is important. It’s crucial to follow the recommended dosage and instructions provided by your healthcare provider.

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References

1.-

Dvoretsky LI. Sul’fat zheleza v lechenii zhelezodefitsitnoĭ anemii: pozitsii sokhraniaiutsia [Ferrous sulfate in the treatment of iron deficiency anemia: The positions continue]. Ter Arkh. 2017;89(10):108-112. Russian. doi: 10.17116/terarkh20178910108-112. PMID: 29171480. https://pubmed.ncbi.nlm.nih.gov/29171480/

2.-

Nguyen M, Tadi P. Iron Supplementation. 2022 Jul 4. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2023 Jan–. PMID: 32491308. https://www.ncbi.nlm.nih.gov/books/NBK557376

3.-

Tolkien Z, Stecher L, Mander AP, Pereira DI, Powell JJ. Ferrous sulfate supplementation causes significant gastrointestinal side-effects in adults: a systematic review and meta-analysis. PLoS One. 2015 Feb 20;10(2):e0117383. doi: 10.1371/journal.pone.0117383. PMID: 25700159; PMCID: PMC4336293. https://pubmed.ncbi.nlm.nih.gov/25700159/