How can individuals improve iron absorption from plant-based sources?

• A. Ignore vitamin C; rely on spinach.
• B. Combine nonheme iron sources with vitamin C-rich foods; soaking, sprouting, fermentation to reduce inhibitors like phytates.
• C. Take calcium supplements with iron to boost absorption.
• D. Only eat iron from meat to maximize absorption.

Answer: (B)

Enhancing nonheme iron absorption from plant foods relies on both maximizing what helps iron get absorbed and reducing what blocks it. Vitamin C-rich foods boost absorption of nonheme iron because vitamin C converts iron to a form that’s easier to take up and keeps it soluble in the digestive tract. At the same time, many plant foods contain compounds such as phytates that bind iron and hinder its uptake; reducing these inhibitors makes iron more available. Soaking, sprouting, and fermentation lower phytate levels and other blockers, increasing the amount of iron your body can absorb from plant sources. Pairing iron-rich plant foods (beans, lentils, fortified grains, seeds) with vitamin C sources (citrus, peppers, berries, tomatoes) and using these preparation methods together provides a practical way to improve iron status on a plant-based diet. Be aware that calcium consumed at the same time can interfere with iron absorption, and animal sources provide a different, often higher, baseline iron uptake, which is not the focus when improving plant-based iron absorption.