Depletion and loading methods were used for determining salt sensitivity in the clinical setting. A significant relationship of blood pressure (BP) response to salt/sodium (Na) depletion and load was observed. In adults with varying levels of BP, a dietary or an intravenous (IV) method of Na depletion (10 to 50mmol per day, three days or less) and Na loading (150 to 400mmol per day, three days or more), both with BP monitoring throughout the test period, provide strong evidence that this is an acceptable method.