A 3-year old boy is detected to have bilateral renal calculi.Metabolic evaluation confirms the presence of marked hypercalciuria with normal blood levels of calcium,magnesium,phosphate,uric acid and creatinine.A diagnosis of idiopathic hypercalciuria is made.The dietary managements includes all,except

• A. Increased water intake
• B. Low sodium diet
• C. Reduced calcium intake
• D. Avoid meat proteins