FIGURE I-2 Blood pressure (mm Hg) according to dietary sodium intake in g/d (mmol/d) among 6 normotensive subjects at risk of hypertension. Each sodium level was provided for 4 d. Systolic blood pressures were calculated from the formula mean blood pressure = 2/3 diastolic blood pressure + 1/3 systolic blood pressure. NS = not significantly different; *p < 0.001; **p < 0.05. Data from Sullivan et al. (1980).
FIGURE I-3 Blood pressure (mm Hg) according to dietary sodium intake in g/d (mmol/d) among 14 normotensive men. Each sodium level was provided for 3–7 d. Significant difference between 10 and 800 mmol/d (p < 0.05). Data from Luft et al. (1979).
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"Appendix I: Dose-Response Effects of Sodium Intake on Blood Pressure."
Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate.
Washington, DC: The National Academies Press, 2005.