Remote dietitian counseling with short-term meal delivery improves DASH diet adherence and lowers blood pressure in veterans with hypertension and obesity

Top Things to Know

A short-term provision of DASH-aligned meals helped participants experience what therapeutic eating looks like in practice, supporting longer-term adherence even after meal delivery ended.

Remote, motivational interviewing–based nutrition care produced blood pressure reductions comparable to landmark DASH trials.

Improved diet quality translated into real clinical outcomes, including blood pressure control and medication de-escalation.

Summary of Conclusion/Findings

This randomized trial evaluated a fully remote dietary intervention among veterans with hypertension and obesity that combined a brief period of home-delivered DASH-style, sodium-restricted meals with ongoing telephone-based dietitian counseling using motivational interviewing. The intervention led to a statistically significant and sustained improvement in DASH diet adherence over six months, as measured by food records and food frequency questionnaires. These dietary improvements were accompanied by meaningful reductions in clinic blood pressure, including decreases in both systolic and diastolic BP, despite participants already having relatively well-controlled hypertension at baseline. Objective dietary biomarkers supported these findings, with the urinary sodium-to-potassium ratio declining substantially over the study period. Notably, approximately one in five participants were able to reduce or discontinue at least one antihypertensive medication during routine clinical care. Adding a purpose-built mobile application to dietitian counseling did not confer additional benefit beyond counseling alone.