Estimated change in average salt intake, SBP and cardiovascular disease risk with salt reduction
| Salt reductions | Effect of salt reduction on SBP based on randomised trials | Effect of salt reduction on SBP based on a population study | ||||||
| Salt intake (g/day) | SBP (mm Hg) | IHD risk (%) | Stroke risk (%) | Salt intake (g/day) | SBP (mm Hg) | IHD risk (%) | Stroke risk (%) | |
| 1 g/day reduction in 1 year | −1 (−1 to −1) | −1.2 (−0.5 to −2.2) | −4.2 (−1.8 to −7.7) | −5.7 (−2.4 to −9.3) | −1 (−1 to −1) | −1.9 (−1.5 to −2.3) | −7.1 (−4.6 to −14) | −9.9 (−6 to −15) |
| 30% reduction by 2025 | −3.2 (−2.3 to −4.2) | −3.8 (−1.5 to −7.5) | −12.9 (−5.2 to −25.7) | −17.3 (−6.1 to −30.5) | −3.3 (−2.4 to −4.2) | −6.3 (−4.5 to −8.8) | −22 (−12.1 to −41.3) | −29.7 (−15.3 to −45.1) |
| Reduction to ≤5 g/day by 2030 | −6 (−4.3 to −8) | −7.1 (−2.9 to −14.1) | −23 (−9.6 to −42.9) | −30.1 (−11.2 to −49.7) | −6.2 (−4.6 to −8) | −12 (−8.5 to −16.6) | −37.4 (−21.6 to −63.5) | −48.6 (−27 to −67.8) |
Data are median (95% UI). The changes reported for salt intake and SBP are absolute reductions; those reported for disease risk are relative reductions.
IHD, ischaemic heart disease; SBP, systolic blood pressure.