Which supplement is recommended to improve the absorption of oral iron?

Vitamin C is known to improve the absorption of oral iron significantly. When iron is consumed, especially in its non-heme form found in plant-based foods and supplements, it can be poorly absorbed due to the presence of inhibitors such as phytates and certain minerals. Vitamin C, or ascorbic acid, enhances iron absorption by converting ferric iron (Fe3+) into ferrous iron (Fe2+), which is more readily absorbed in the intestines. Additionally, vitamin C can help reduce the effects of these inhibitors, making iron more bioavailable.

Understanding this relationship is crucial for individuals who are at risk of iron deficiency or those looking to optimize their iron intake through diet or supplementation. This is why the use of vitamin C alongside iron supplements is commonly recommended in both clinical practice and dietary guidelines.