Which vitamin deficiency is likely to be a concern for a person undergoing chemotherapy?

A vitamin B12 deficiency is particularly relevant for individuals undergoing chemotherapy due to several factors. Chemotherapy can cause gastrointestinal side effects such as nausea, vomiting, and diarrhea, which may lead to impaired absorption of nutrients, including vitamin B12. This vitamin is essential for red blood cell formation, neurological function, and DNA synthesis. When the body is unable to properly absorb vitamin B12, it can lead to anemia and neurological issues.

Additionally, chemotherapy can impact the cells lining the gastrointestinal tract, further hindering the absorption of important nutrients. Since vitamin B12 is primarily found in animal products and is dependent on intrinsic factor for absorption, individuals with restrictive diets or malabsorption issues related to chemotherapy may find themselves at an increased risk for deficiency. Recognizing and addressing vitamin B12 levels during cancer treatment can help improve overall health outcomes and maintain energy levels.