Which of the following vitamins can help increase the absorption of non-heme iron?

Vitamin C is well-known for its ability to enhance the absorption of non-heme iron, which is found in plant-based foods. Non-heme iron is generally not absorbed as efficiently as heme iron, which comes from animal sources. Vitamin C aids in this process by converting non-heme iron into a more soluble form that the body can more easily absorb. When Vitamin C is consumed along with iron-rich foods, it can significantly improve the overall iron uptake from these sources. This is particularly beneficial for individuals who rely on plant-based diets to meet their iron needs.

Other vitamins listed, such as Vitamin A, D, and K, do not play a significant role in increasing non-heme iron absorption. Vitamin A supports overall immune function and vision, Vitamin D is primarily involved in calcium metabolism and bone health, while Vitamin K is crucial for blood clotting and bone metabolism, but none of them directly enhance iron absorption as effectively as Vitamin C does.