What dietary adjustment is recommended for patients undergoing chemotherapy?

Enhancing hydration is a critical dietary adjustment recommended for patients undergoing chemotherapy due to the side effects that treatment can produce. Chemotherapy often leads to symptoms such as nausea, vomiting, and changes in taste, which can significantly impact fluid intake. Proper hydration is essential for maintaining kidney function, supporting overall health, and helping to alleviate some of the side effects of the treatment, such as constipation and fatigue.

Increased hydration also aids in the body's ability to process and eliminate the toxins released through chemotherapy drugs. Therefore, ensuring that patients maintain adequate fluid intake is vital for their well-being during this challenging time.

The other options, while they may have importance in specific contexts, do not directly address the most pressing needs of chemotherapy patients in a general sense. For example, increasing calcium intake could be beneficial for bone health but is not a primary concern. Limiting fiber intake may be advised in specific situations, particularly if patients experience gastrointestinal distress, but this is not universally applicable to all chemotherapy patients. Increasing iron intake is important for addressing anemia, which can be a side effect of chemotherapy, but hydration remains a more immediate need for managing various side effects.