Cited by 170Sodium Intake and HealthBlood Pressure and Hypertension StudiesRenin-Angiotensin System Studies

Effects of low sodium diet versus high sodium diet on blood pressure, renin, aldosterone, catecholamines, cholesterol, and triglyceride.

Graudal, Niels Albert, Hubeck-Graudal, Thorbjorn, Jurgens, Gesche·2011·Cochrane Database of Systematic Reviews

Abstract

BACKGROUND: In spite of more than 100 years of investigations the question of reduced sodium intake as a health prophylaxis initiative is still unsolved. OBJECTIVES: To estimate the effects of low sodium versus high sodium intake on systolic and diastolic blood pressure (SBP and DBP), plasma or serum levels of renin, aldosterone, catecholamines, cholesterol, high-density lipoprotein (HDL), low-density lipoprotein (LDL) and triglycerides. SEARCH METHODS: PUBMED, EMBASE and Cochrane Central and reference lists of relevant articles were searched from 1950 to July 2011. SELECTION CRITERIA: Studies randomizing persons to low sodium and high sodium diets were included if they evaluated at least one of the above outcome parameters. DATA COLLECTION AND ANALYSIS: Two authors independently collected data, which were analysed with Review Manager 5.1. MAIN RESULTS: A total of 167 studies were included in this 2011 update.The effect of sodium reduction in normotensive Caucasians was SBP -1.27 mmHg (95% CI: -1.88, -0.66; p=0.0001), DBP -0.05 mmHg (95% CI: -0.51, 0.42; p=0.85). The effect of sodium reduction in normotensive Blacks was SBP -4.02 mmHg (95% CI:-7.37, -0.68; p=0.002), DBP -2.01 mmHg (95% CI:-4.37, 0.35; p=0.09). The effect of sodium reduction in normotensive Asians was SBP -1.27 mmHg (95% CI: -3.07, 0.54; p=0.17), DBP -1.68 mmHg (95% CI:-3.29, -0.06; p=0.04). The effect of sodium reduction in hypertensive Caucasians was SBP -5.48 mmHg (95% CI: -6.53, -4.43; p<0.00001), DBP -2.75 mmHg (95% CI: -3.34, -2.17; p<0.00001). The effect of sodium reduction in hypertensive Blacks was SBP -6.44 mmHg (95% CI:-8.85, -4.03; p=0.00001), DBP -2.40 mmHg (95% CI:-4.68, -0.12; p=0.04). The effect of sodium reduction in hypertensive Asians was SBP -10.21 mmHg (95% CI:-16.98, -3.44; p=0.003), DBP -2.60 mmHg (95% CI: -4.03, -1.16; p=0.0004).In plasma or serum there was a significant increase in renin (p<0.00001), aldosterone (p<0.00001), noradrenaline (p<0.00001), adrenaline (p<0.0002), cholesterol (p<0.001) and triglyceride (p<0.0008) with low sodium intake as compared with high sodium intake. In general the results were similar in studies with a duration of at least 2 weeks. AUTHORS' CONCLUSIONS: Sodium reduction resulted in a 1% decrease in blood pressure in normotensives, a 3.5% decrease in hypertensives, a significant increase in plasma renin, plasma aldosterone, plasma adrenaline and plasma noradrenaline, a 2.5% increase in cholesterol, and a 7% increase in triglyceride. In general, these effects were stable in studies lasting for 2 weeks or more.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1002/14651858.cd004022.pub3

Cites

205 of 205 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

1 retracted

Flagged first, then by citations

3 of the 208 references couldn’t be matched to a known paper.

Cited by

Sorted by citations

Authors
Graudal, N. A., Hubeck-Graudal, T., & Jurgens, G.
Affiliations
Copenhagen University Hospital (DK)
Venue
Cochrane Database of Systematic Reviews
Published
2011-11-09
Issue
11
Pages
CD004022-CD004022
ISSN
1361-6137 (ISSN-L)
OpenAlex
W4232450481
Cited by
170
References
208
Citations by year
2026: 2 · 2025: 4 · 2024: 9 · 2023: 8 · 2022: 14 · 2021: 11 · 2020: 13 · 2019: 8 · 2018: 13 · 2017: 17 · 2016: 21 · 2015: 24 · 2014: 10 · 2013: 9 · 2012: 6
Type
reference entry
Language
en
Open access
closed
Locations
  • Cochrane Database of Systematic Reviews (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
Keywords
sodium restriction, high-salt diet, sodium intake, blood pressure, renin, aldosterone, catecholamines, cholesterol, triglycerides, HDL cholesterol, low-density lipoprotein, hypertension, normotension, racial differences, cardiovascular risk reduction, renin-angiotensin system, renin-aldosterone system
MeSH terms
Aldosterone, Blood Pressure, Catecholamines, Cholesterol, Diet, Sodium-Restricted, Humans, Hypertension, Renin, Triglycerides, Randomized Controlled Trials as Topic, Sodium Chloride, Dietary, Black People, White People, Asian People

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review