What is the primary goal of a low-protein diet in CKD?

The primary goal of a low-protein diet in chronic kidney disease (CKD) is to reduce the nitrogenous waste load on the kidneys. When protein is metabolized, nitrogenous waste products, such as urea, are produced. In individuals with CKD, the kidneys are less efficient at filtering these waste products from the bloodstream. By lowering protein intake, the generation of these nitrogenous wastes is minimized, allowing the kidneys to function more effectively and potentially slowing the progression of the disease. This dietary approach is crucial as it helps manage symptoms and preserves kidney function for a longer period.

The other options do not align with the primary objectives of a low-protein diet in CKD management. For instance, while increasing calorie intake may be important for overall nutritional status, it is not the fundamental goal of reducing protein intake in this context. Supporting muscle growth and triggering higher protein synthesis are generally not appropriate aims within the dietary management of CKD, as this may lead to increased protein breakdown and consequently higher nitrogenous waste production, which the compromised kidneys may struggle to handle.