In CKD, which foods are commonly restricted due to high potassium content, and name two lower-potassium alternatives?

• A. High-sodium foods; water
• B. Potassium-rich foods include bananas, potatoes, tomatoes; lower-potassium options include apples, berries, white rice
• C. High-phosphorus foods; milk and yogurt
• D. High-protein foods; bread and rice

Answer: (B)

In CKD, the kidneys have reduced ability to excrete potassium, so foods high in potassium are often restricted to prevent dangerous hyperkalemia. Potassium-rich items like bananas, potatoes, and tomatoes are common offenders that patients limit. Two lower-potassium alternatives that fit well into many diets are apples and berries (and white rice is another simple low-potassium staple). This focus on potassium helps explain why those choices are preferred: they provide fewer potassium calories while still offering variety and nourishment. Other CKD restrictions target different minerals or nutrients, such as sodium, phosphorus, or protein, which is why those other options don’t address potassium specifically.