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Fig. 3. Effect of potassium intake on frequency of salt-sensitivity in non-hypertensive African-American men (solid bar) and white men (cross-hatched bar). No white men were tested with 4.7 g/day (120 mmol/day) of potassium. Throughout an initial 7-day period of salt loading in all study subjects, potassium intake as potassium bicarbonate was set at 1.2 g/day (30 mmol/day), then increased to a total of either 2.7 or 4.7 g/day (70 or 120 mmol/day) for a subsequent 7-day period of salt loading.
