Salt reduction lowers cardiovascular risk: meta-analysis of outcome trials

@article{He2011SaltRL,
  title={Salt reduction lowers cardiovascular risk: meta-analysis of outcome trials},
  author={Feng J. He and Graham A. MacGregor},
  journal={The Lancet},
  year={2011},
  volume={378},
  pages={380-382}
}

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References

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TLDR
Estimates of benefits from dietary salt restriction are consistent with the predicted small effects on clinical events attributable to the small blood pressure reduction achieved, and there is insufficient power to exclude clinically important effects of reduced dietary salt on mortality or cardiovascular morbidity in normotensive or hypertensive populations.

By how much does dietary salt reduction lower blood pressure? I--Analysis of observational data among populations.

TLDR
The association of blood pressure with sodium intake is substantially larger than is generally appreciated and increases with age and initial blood pressure.

By how much does dietary salt reduction lower blood pressure? I--Analysis of observational data among populations.

TLDR
The association of blood pressure with sodium intake is substantially larger than is generally appreciated and increases with age and initial blood pressure.

How Far Should Salt Intake Be Reduced?

TLDR
A meta-analysis of longer-term trials looked at the dose response between salt reduction and fall in blood pressure and compared this with 2 well-controlled studies of 3 different salt intakes, finding a consistent dose response to salt reduction within the range of 12 to 3 g/d.

Normal-sodium diet compared with low-sodium diet in compensated congestive heart failure: is sodium an old enemy or a new friend?

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It is shown that a normal-sodium diet improves outcome, and sodium depletion has detrimental renal and neurohormonal effects with worse clinical outcome in compensated patients with CHF patients.

Reduced dietary salt for the prevention of cardiovascular disease: a meta-analysis of randomized controlled trials (Cochrane review).

TLDR
Estimates of benefits from dietary salt restriction are consistent with the predicted small effects on clinical events attributable to the small BP reduction achieved, and there is still insufficient power to exclude clinically important effects of reduced dietary salt on mortality or CVD morbidity.