Why should I only take Iron BioSeries™ every other day?

Research shows that taking 60 mg of iron as ferrous bisglycinate every day is safe for most healthy adults, but it may not be ideal for iron absorption. Clinical research shows improved iron absorption when iron doses of 60 mg or more are given every other day, as compared with every day, which is why Iron BioSeries™ is formulated with an alternating-day regimen, designed for optimal iron absorption.1 That being said, if you have specific questions or concerns, we recommend checking in with your healthcare provider.*
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​Stoffel NU, von Siebenthal HK, Moretti D, Zimmermann MB. Oral iron supplementation in…women: How much and how often? Mol Aspects Med. 2020 Oct;75:100865
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