Final answer:
On a low-protein diet, a client with kidney disease should limit high-protein foods such as chicken, which is a source of protein that could worsen kidney function.
Step-by-step explanation:
The nurse is providing instructions to a client with kidney disease about a low-protein diet. The client would need to limit foods that are high in protein content. Among the options provided, chicken, which is a significant source of protein, would be an example of a food item to limit on a low-protein diet. Other sources of protein that would need to be restricted, although not listed in the question's options, typically include beef, pork, lamb, fish, eggs, dairy products, and some plant-based proteins such as beans, nuts, and legumes.