What common side effect might a child experience during chemotherapy?

In the context of chemotherapy, weight loss is a common side effect that can occur in children. This is primarily due to the combination of factors such as nausea, vomiting, changes in taste, and a general decline in appetite that are often associated with chemotherapy treatments. These reactions can lead to decreased food intake and, consequently, weight loss.

Children undergoing chemotherapy may face additional challenges, including fatigue and various gastrointestinal symptoms, which can further impact their nutritional status. While some children may experience temporary weight fluctuations, the overall trend during treatment tends to lean towards weight loss due to these side effects.

The other options represent effects that are not usually associated with chemotherapy in children. Enhanced immunity is not typical, as chemotherapy can often suppress the immune system. Increased energy is also uncommon; in fact, many children feel fatigued during treatment. Reduced appetite, while a significant concern, is not typically classified in the same manner as weight loss, which is a direct outcome of the reduced intake over time.