Final answer:
The nurse should recommend high-calorie, small, frequent meals as the best intervention for the client with poor appetite due to cervical cancer.
Step-by-step explanation:
The nurse should recommend high-calorie, small, frequent meals as the best intervention for the client with poor appetite due to cervical cancer. This approach can help provide the necessary nutrients and energy to the client while minimizing the overwhelming feeling of a large meal. It is important to choose nutrient-dense foods that are appealing to the client and meet their dietary needs.