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Clinical Trial Summary

This study will compare the low-sodium/low-fat DASH (Dietary Approaches to Stop Hypertension) diet with a very low-carbohydrate diet, helping us to better understand how two different dietary approaches may help participants control their blood pressure, lose weight, and reduce their blood glucose.

Clinical Trial Description

Adults with overweight or obesity, hypertension, and prediabetes or type 2 diabetes are at a high risk of adverse health outcomes including stroke, renal disease, myocardial infarction, and premature death. Evidence suggests that the first-line treatment for adults with this triple burden should be a comprehensive diet and lifestyle intervention.

However, experts disagree about which diet should be recommended. The Dietary Approaches to Stop Hypertension (DASH) diet, a lower fat diet, is the de facto diet for adults with hypertension. A very low-carbohydrate (VLC) diet, a higher fat diet, is becoming the de facto diet for weight and glycemic control. In addition, a VLC diet may reduce blood pressure through weight loss and its impact on insulin (which alters renal sodium transport and leads to diuresis). Given that these two diets, DASH and very low-carbohydrate, are extremely promising options for this population, and the fact that they have never been compared in this population or any other, this comparison is strongly warranted.

The investigators propose to use an interprofessional team (with expertise in nursing, psychology, medicine, policy, nutrition, pharmacy, and behavioral interventions) to conduct a comparative effectiveness trial of two different diets for adults with this triple burden. The HERO Study (Hypertension, Diabetes, and Obesity Education Research Online) will compare the health effects of the DASH and VLC diets.

The investigators propose one aim:

Test the feasibility, acceptability, and preliminary comparative efficacy of the interventions. The investigators will randomize 140 adults with this triple burden to the DASH or VLC versions of the 4-month intervention. Outcome measures include intervention feasibility (recruitment and retention); acceptability (satisfaction with the intervention); and preliminary comparative efficacy as determined by changes in our primary outcome (systolic blood pressure), as well as exploratory secondary outcomes (weight, glycemic control). ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03729479
Study type Interventional
Source University of Michigan
Status Recruiting
Phase Phase 1/Phase 2
Start date November 1, 2018
Completion date March 1, 2020

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