Less Salt = Lower Blood Pressure
Blood Pressure Effects of Sodium Reduction
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The blood pressure-lowering effect of sodium reduction was linear across the entire range—even at ultra-low intake (0.4g/day), with no flattening or plateau.
Most health guidelines assume a threshold (e.g., 1.5–2.3g/day) beyond which no further benefit occurs. This study says: keep going.
Practical Takeaways
Replace one high-sodium processed food per day (like soup or bread) with a low-sodium alternative—this could cut ~2.3g sodium and drop systolic BP by ~5.6 mm Hg.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
The blood pressure-lowering effect of sodium reduction was linear across the entire range—even at ultra-low intake (0.4g/day), with no flattening or plateau.
Most health guidelines assume a threshold (e.g., 1.5–2.3g/day) beyond which no further benefit occurs. This study says: keep going.
Practical Takeaways
Replace one high-sodium processed food per day (like soup or bread) with a low-sodium alternative—this could cut ~2.3g sodium and drop systolic BP by ~5.6 mm Hg.
Publication
Journal
Circulation
Year
2021
Authors
T. Filippini, M. Malavolti, P. Whelton, A. Naska, N. Orsini, M. Vinceti
Related Content
Claims (5)
If you eat much less salt, your blood pressure will go down—lower salt means lower blood pressure, and the less salt you eat, the more your pressure drops, with no point where cutting more salt stops helping.
If you eat less salt—about 2.3 grams less per day—your blood pressure will likely go down by about 5.6 points for the top number and 2.3 points for the bottom number, no matter if you're already taking blood pressure medicine.
If you cut down on salt, your blood pressure drops more if you already have high blood pressure than if you don’t—and the drop is about 6.5 mm Hg higher for every 100 mmol of salt you reduce.
Cutting back on salt in your food lowers blood pressure about the same amount for men and women—neither sex benefits more than the other.
Cutting down on salt helps lower your blood pressure, even if you're already taking medicine for high blood pressure — so salt reduction adds extra benefit on top of your meds.