John, 15 Years Old, Developed Acute Glomerulonephritis After a Bout

John, 15 years old, developed acute glomerulonephritis after a bout of complicated upper respiratory infection. The nurse is planning to teach about dietary restrictions. Which of the following dietary changes should be included in the plan?

A) Limit fluid intake to 500ml per day
B) Restrict protein intake by limiting meats and other high-protein foods
C) Increase intake of high-fiber foods, such as bran cereal
D) Increase intake of potassium-rich foods such as bananas or cantaloupe