HypertensionRandomised controlled trial
DASH-Patterned Groceries and Effects on Blood Pressure
- Randomised controlled trial
- parallel-group
Authors' conclusion
In this study, a program of home-delivered, DASH-style groceries plus dietitian counseling decreased BP and LDL cholesterol levels beyond comparable monetary compensation. However, effects were not maintained after the intervention ended.
Study context
- Population
- Black residents of urban Boston communities with few grocery stores, SBP 120 to <150 mm Hg, DBP <100 mm Hg, no hypertension treatment175 completed primary outcome
- Participants
- 180 residents
- Comparison
- Dietary Approaches to Stop Hypertension (DASH)-patterned vs Self-directed
- Primary endpoint
- Difference in change in model-estimated office SBP between interventions
- Follow-up
- 3 months
Primary result
Change in office SBP
Difference in changes
−3.4 mm Hg
95% CI −5.9 to −0.8
P = 0.009
By group
DASH-patterned
−5.7
mean change · 95% CI −7.4, to-3.9 · mm Hg
Self-directed
−2.3
mean change · 95% CI −4.1–-0.4 · mm Hg
DASH-patterned vs Self-directed
difference in changes −3.4 mm Hg (95% CI −5.9 to −0.8); P = 0.009
As reported in the abstract
Secondary outcomes
| Outcome | change (mm Hg) (95% CI) | |
|---|---|---|
| DBP, urine sodium, LDL-C · 3 months — DASH-patterned vs Self-directed · DBP | −2.4 (−4.2 to −0.5) | |
| −6−4−202Difference, mm Hg (linear scale) |
| Outcome | change (mg/24 h) (95% CI) | |
|---|---|---|
| DBP, urine sodium, LDL-C · 3 months — DASH-patterned vs Self-directed · urine sodium | −545 (−1041 to −50) | |
| −1500−1000−5000500Difference, mg/24 h (linear scale) |
| Outcome | change (mg/dL) (95% CI) | |
|---|---|---|
| DBP, urine sodium, LDL-C · 3 months — DASH-patterned vs Self-directed · LDL-C | −8.0 (−13.7 to −2.3) | |
| −20−10010Difference, mg/dL (linear scale) |
Body mass index (BMI), hemoglobin A1c
- No effects in BMI or hemoglobin A1c
Maintenance of effects · 6 months after initiation
- Effects not maintained
Original publication
DASH-Patterned Groceries and Effects on Blood Pressure. JAMA. Published 6 January 2026. doi:10.1001/jama.2025.21112
Summarised from the published abstract; every number is checked against it