What is the primary reason for a low-sodium, high-potassium diet prescribed for a client with Cushing syndrome?

A low-sodium, high-potassium diet for clients with Cushing syndrome primarily aims to counteract the effects of excessive aldosterone and cortisone. In Cushing syndrome, the adrenal glands produce too much cortisol, which can lead to increased sodium retention and potassium loss. This imbalance can result in hypertension, fluid retention, and various metabolic issues.

By reducing sodium intake, the diet helps prevent further fluid retention, thereby alleviating some symptoms associated with elevated cortisol levels. Simultaneously, increasing potassium intake is crucial because potassium acts as a counterbalance to sodium. This is particularly important in conditions where aldosterone levels are high, as aldosterone promotes the retention of sodium and the excretion of potassium. Thus, a high-potassium diet can help regain electrolyte balance and mitigate some of the adverse effects of Cushing syndrome, making it the most relevant and effective dietary intervention for managing the condition.