which statement is not true of the health effects of a high-sodium diet? a. a high-salt intake is associated with increased calcium excretion. b. potassium may prevent the excretion of calcium caused by a high-salt diet. c. the dietary approaches to stop hypertension (dash) diet emphasizes potassium-rich vegetables and fruits and calcium-rich dairy foods. d. hyponatremia is a condition resulting from high salt intake.