Cited by 62Blood Pressure and Hypertension StudiesSodium Intake and HealthNutritional Studies and Diet

Effects of the Modified DASH Diet on Adults With Elevated Blood Pressure or Hypertension: A Systematic Review and Meta-Analysis

Open access
Guo, Ru, Li, Nian, Yang, Rong, Liao, Xiao-Yang, Zhang, Yu, Zhu, Ben-Fu, Zhao, Qian, Chen, Lingmin +2 more·2021·Frontiers in Nutrition

Abstract

Background: The modified Dietary Approaches to Stop Hypertension (DASH) diet was a potentially effective treatment for pre-hypertensive and hypertensive patients. The evidence for the effect of the modified DASH diet on blood pressure reduction was inconsistent. The study was designed to assess the effects of the modified DASH diet on blood pressure (BP) in hypertensive and pre-hypertensive adults. Methods: We searched Medline, Embase, CENTRAL, CNKI, VIP, Wanfang Data, SINOMED, Google Scholar, the World Health Organization's International Clinical Trials Registry Platform, and Clinicaltrials.gov from inception to July 1st, 2021. Randomized controlled trials (RCTs) assessing the effects of the modified DASH diet on systolic and diastolic BP, cardiovascular risk factors (body weight, body mass index, waist circumference, fasting glucose, blood lipids), cardiovascular events, and all-cause mortality were included. Statistical analysis was performed using Stata software. Risk of bias was assessed with the Cochrane tool and quality of evidence with GRADE. Results: A total of 10 RCTs were included. Compared with control diet, the modified DASH diet could reduce mean systolic (−3.26 mmHg; 95% confidence interval −5.58, −0.94 mmHg; P = 0.006) and diastolic (−2.07 mmHg; 95% confidence interval −3.68, −0.46 mmHg; P = 0.01) BP. Compared with the controlling diet, the modified DASH diet could reduce systolic BP to a greater extent in trials with a mean baseline BP ≥ 140/90 mmHg compared with <140/90 mmHg. Diastolic BP reduction was greater when the mean body mass index was ≥30 kg/m2 than <30 kg/m2. Diastolic BP reduction was more marked in trials with a follow-up time of >8 weeks compared with ≤8 weeks. The modified DASH diet could affect mean waist circumference (difference: 1.57 cm; 95% confidence interval −2.98, −0.15) and triglyceride concentration (difference: 1.04 mol/L; 95% confidence interval −1.47, −0.60). Conclusions: The modified DASH diet can reduce BP, waist circumference, and triglyceride concentration in hypertension patients. A higher baseline BP is associated with more marked systolic and diastolic BP reduction. Systematic Review Registration: PROSPERO registration number: CRD42020190860.

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 · 10.3389/fnut.2021.725020

Cites

40 of 40 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?

  • A systematic review of 10 randomized controlled trials reported that compared with control diet, the modified DASH eating pattern could reduce mean systolic (-3.26 mmHg [95% CI -5.58 to -0.94 mmHg]; P = 0.006) and diastolic (-2.07 mmHg [95% CI -3.68 to -0.46 mmHg]; P = 0.01) blood pressure.

    “A systematic review of 10 randomized controlled trials reported that compared with control diet, the modified Dietary Approaches to Stop Hypertension (DASH) eating pattern could reduce mean systolic (À3.26 mmHg [95% CI À5.58 to À0.94 mmHg]; P = 0.006) and diastolic (À2.07 mmHg [95% CI À3.68 to À0.46 mmHg]; P = 0.01) blood pressure (60).”
  • A systematic review of 10 randomized controlled trials reported that compared with control diet, the modified DASH eating pattern could reduce mean systolic (−3.26 mmHg [95% CI −5.58 to −0.94 mmHg]; P = 0.006) and diastolic (−2.07 mmHg [95% CI −3.68 to −0.46 mmHg]; P = 0.01) blood pressure.

    “A systematic review of 10 randomized controlled trials reported that compared with control diet, the modified Dietary Approaches to Stop Hypertension (DASH) eating pattern could reduce mean systolic (−3.26 mmHg [95% CI −5.58 to −0.94 mmHg]; P = 0.006) and diastolic (−2.07 mmHg [95% CI −3.68 to −0.46 mmHg]; P = 0.01) blood pressure (54).”

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

Flagged first, then by citations

Research works printed but not linked: 1

  1. [26]Review Manager (RevMan) Version 5,.4.1. The Cochrane Collaboration (2020). Available online at: https://training.cochrane.org/online-learning/core-software-cochrane-reviews/revman/revman-5-download/download-and-installation (accessed: July 1, 2021).

Cited by

Sorted by citations

Authors
Guo, R., Li, N., Yang, R., Liao, X.-Y., Zhang, Y., Zhu, B.-F., Zhao, Q., Chen, L., Zhang, Y.-G., & Lei, Y.
Affiliations
  • Sichuan University (CN)
  • Chinese Academy of Medical Sciences & Peking Union Medical College (CN)
Corresponding author
Lei, Yi
Venue
Frontiers in Nutrition
Published
2021-09-07
Volume
8
Pages
725020-725020
ISSN
2296-861X (ISSN-L)
OpenAlex
W3198347139
Cited by
62
References
40
Citations by year
2026: 9 · 2025: 19 · 2024: 12 · 2023: 13 · 2022: 8 · 2021: 1
FWCI
1.66
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Nutrition (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, other-oa)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Sichuan University
  • National Key Research and Development Program of China (2017YFC 0907303)
  • West China Hospital, Sichuan University (Z20191009)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Blood Pressure and Hypertension Studies
  • Health Sciences › Nursing › Nutrition and Dietetics › Sodium Intake and Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
hypertension, prehypertension, blood pressure reduction, systolic blood pressure, diastolic blood pressure, waist circumference, triglycerides, body mass index, cardiovascular risk factors, all-cause mortality, dietary intervention, adults, follow-up duration, body weight, fasting blood glucose, serum lipids, cardiovascular events, risk of bias

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