In CKD with hyperphosphatemia, which dietary focus is most appropriate?

• A. Higher phosphorus intake
• B. Lower phosphorus intake
• C. Higher potassium intake
• D. Higher sodium intake

Answer: (B)

In CKD with high phosphate, the key is to cut phosphate intake through the diet. When the kidneys aren’t able to excrete phosphate effectively, phosphate builds up in the blood, which can drive bone problems and vascular calcification. Reducing dietary phosphate helps lower serum phosphate levels and can lessen downstream issues like secondary hyperparathyroidism. Emphasize foods that are naturally low in phosphorus and be cautious with items containing phosphate additives, which are highly absorbable. Often, meals are planned with attention to the phosphate content of foods, and phosphate binders may be used with meals to further limit absorption. While potassium and sodium also need to be managed in CKD, they don’t address the hyperphosphatemia directly in the way restricting phosphate does.