As a health and nutrition expert, I can explain the interaction between iron supplements and vitamin C, such as that found in orange juice. When you take iron supplements, the absorption of iron can be enhanced by the presence of vitamin C. Vitamin C acts as a reducing agent, which helps to convert the ferric iron (Fe^3+) found in supplements into the more easily absorbed ferrous form (Fe^2+). This process makes it easier for the body to utilize the iron from the supplements. Orange juice is a natural source of vitamin C and is often recommended to be taken with iron pills because it provides a readily available and effective form of this vitamin. The acidity of the juice can also aid in the absorption process. It's important to note that while vitamin C can improve iron absorption, it's not the only factor. The overall diet, the presence of other minerals, and individual differences in metabolism can also affect how well the body absorbs and utilizes iron. Here's the translation of the above explanation into Chinese: 作为健康和营养领域的专家，我可以解释铁补充剂和维生素C（如橙汁中所含的）之间的相互作用。 当你服用铁补充剂时，维生素C的存在可以增强铁的吸收。维生素C作为一种还原剂，有助于将补充剂中发现的铁离子（Fe^3+）转化为更易被吸收的亚铁形式（Fe^2+）。这个过程使得身体更容易利用补充剂中的铁。 橙汁是维生素C的天然来源，通常建议与铁片一起服用，因为它提供了一种现成且有效的维生素C形式。果汁的酸性也有助于吸收过程。 需要注意的是，尽管维生素C可以改善铁的吸收，但它并不是唯一的因素。整体饮食、其他矿物质的存在以及新陈代谢的个体差异也会影响身体吸收和利用铁的程度。 read more >>

Taking iron supplement pills and getting enough iron in your food will correct most cases of iron deficiency anemia. You usually take iron pills 1 to 3 times a day. To get the most benefit from the pills, take them with vitamin C (ascorbic acid) pills or orange juice. Vitamin C helps your body absorb more iron.read more >>