Can you take iron and calcium together?

This question is about Nutrition

Sarah Achleithner

You should not take iron and calcium together. When taken at the same time,




bind together and significantly reduce absorption


1]. Since iron is best absorbed when taken on an empty stomach and in the presence of

vitamin C

, it’s recommended to take it at least 2-3 hours before or after a calcium supplement.

Iron pills


  1. Lönnerdal B. (2010). Calcium and iron absorption--mechanisms and public health relevance. International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition80(4-5), 293–299.