What statement indicates that a client with chronic renal failure understands sodium and potassium restrictions?

Choosing to use herbs and spices rather than salt in their cooking indicates that the client has a solid understanding of sodium and potassium restrictions associated with chronic renal failure. This choice reflects an awareness that many processed foods, including salt substitutes, can still contain high levels of sodium or potassium, which could be harmful to someone with renal issues. By opting for herbs and spices, the client can enhance the flavor of their meals without increasing sodium intake, thereby managing their condition effectively. This shows a commitment to adhering to dietary guidelines necessary for their health, which is crucial for managing chronic renal failure.