Mr. Jones, a 49-year-old mechanic, has been admitted to the hospital with diagnosis of renal failure. Mr. Jones has been following a 40-gram protein, 2-gram sodium, 2-gram potassium, 1,000-mL fluid restriction for the past 5 years. Mr. Jones is scheduled for surgery tomorrow to have a permanent fistula implanted for hemodialysis. Mr. Jones’s nutritional needs will change after he is maintained on hemodialysis to: