# DASH-Sodium

Study · id `cardio:dash-sodium` · Cardiovascular Atlas · release `73130c34862e2d06` (public)

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Also called: Dietary Patterns, Sodium Intake and Blood Pressure

Browse, organ or system: Blood vessels  
Browse, condition area: Risk and prevention; High blood pressure  

## In plain language

A US feeding trial that tested the DASH diet and three levels of sodium on blood pressure. 412 people were randomly assigned to a control diet like the typical American diet or to the DASH diet, and within their diet each person ate high, intermediate and low sodium foods, 30 days each, in random order. Both lowering sodium and the DASH diet lowered blood pressure, and the two together lowered it the most.

## Technical summary

NHLBI-sponsored trial (NCT00000608), registry phase 2, parallel groups with a randomized cross-over of sodium levels, primary purpose prevention. The registry holds no enrollment count, no locations and no results section; the count of 412 is from the PubMed abstract. The registry says DASH-Sodium built on and extended the earlier NHLBI-initiated DASH study. Start 1997-02, completion 2002-07. Numbers are on the claim. Only the PubMed abstract and the registry record were read.

## Key facts

- Design: Parallel-group comparison of a control diet and the DASH diet, with a randomized cross-over of three sodium levels (high, intermediate, low) of 30 consecutive days each within the assigned diet. The registry records the primary purpose as prevention.
- Phase: Not reported
- Enrolled: 412 participants (randomized count; Effects on blood pressure of reduced dietary sodium and the Dietary Approaches to Stop Hypertension (DASH) diet. DASH-Sodium Collaborative Research Group, snapshot `cardio:pubmed-11136953-2026-10-15`, retrieved 2026-10-15)
- Started: 1997-02 (Dietary Patterns, Sodium Intake and Blood Pressure (DASH - Sodium), snapshot `cardio:ctgov-nct00000608-2026-10-15`, retrieved 2026-10-15)
- Primary completion: 2002-07 (actual) (Dietary Patterns, Sodium Intake and Blood Pressure (DASH - Sodium), snapshot `cardio:ctgov-nct00000608-2026-10-15`, retrieved 2026-10-15)
- Completion: 2002-07 (actual) (Dietary Patterns, Sodium Intake and Blood Pressure (DASH - Sodium), snapshot `cardio:ctgov-nct00000608-2026-10-15`, retrieved 2026-10-15)
- Countries: Not reported
- Care setting: A multicenter outpatient feeding study in which participants ate the study diets (registry description). (Dietary Patterns, Sodium Intake and Blood Pressure (DASH - Sodium), snapshot `cardio:ctgov-nct00000608-2026-10-15`, retrieved 2026-10-15)
- Registry status: "COMPLETED" (U.S. National Library of Medicine (ClinicalTrials.gov), snapshot `cardio:ctgov-nct00000608-2026-10-15`, retrieved 2026-10-15)

## Connected pages

- Tests this eating plan: DASH eating plan (`cardio:dash-eating-plan`)
- Tests three levels of dietary sodium: High sodium intake (`cardio:high-sodium-intake`)
- Lead sponsor on the registry record: National Heart, Lung, and Blood Institute (`cardio:nhlbi`)

## Provenance

Content hash: aefaf744268edcbe2338b551c6b3399cb85f1391fdcf7e264861458bfaa9e3be
Last substantive edit: 2026-10-15
Evidence last checked: 2026-10-15