Combining iron and vitamin C is the most scientifically supported strategy for improving its absorption.

Combining iron and vitamin C is highlighted as the strategy with the strongest scientific backing for improving iron absorption from food. According to Yolanda Vázquez, a doctor in Biological Sciences and nutrition professor, simple culinary additions such as dressing meat with lemon juice or adding peppers to legumes can enhance how the body absorbs the iron provided by these foods.

This nutritional approach offers a practical method to optimize dietary nutrient intake by pairing iron-rich sources with vitamin C.