At a glance
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A Nutrition-Based Approach to Reduce Heart Disease Risk Among Overweight African Americans: Use of Soul Food Plant-Based or Omnivorous Diets to Address Cardiovascular Disease
In Brief
A clinical study evaluating Dietary Intervention Meetings, Physical Activity, and 1 other intervention for Cardiovascular Disease Risk Factors and Overweight and Obesity. Completed, enrolled 159 participants across 1 site.
Detailed Summary
This study addresses two challenges seen among African American (AA) participants during previous weight loss and dietary interventions aimed at reducing cardiovascular disease (CVD) risk: poor weight loss results and high attrition rates. Investigators will target both of these challenges by using a randomized design to compare a plant-based dietary intervention (vegan diet) vs. an omnivorous (omni) diet and by focusing on culturally-tailored food choices for AA adults living in the South. Therefore, the objective of the study is to conduct a culturally-tailored, randomized trial examining how a vegan diet affects CVD risk factors and weight as compared with an omni diet. The study will randomize overweight AA adults (n=130) to follow one of two different diets (vegan or omni) for 24 months. Investigators will accomplish objectives and test hypotheses by following two specific primary aims: Primary Aims: Using a randomized design, determine the impact at 12 months of two different, culturally tailored diets (n=65 omni and n=65 vegan) on changes in: 1. Risk factors for CVD, including LDL cholesterol and blood pressure; and 2. Body weight. Secondary Aim 3. Examine long-term changes in CVD risk factors and body weight at 24 months.
Study Details
Timeline
Interventions
Participants will attend classes once per week for the first 6 months, bi-weekly for the next 6 months; then once a month for the last 12 months.
Participants will be given the following exercise recommendations: strength training twice per week and ≥75 min of vigorous or ≥150 min of moderate PA per week and will be provided with accelerometers.
Participants with receive additional support delivered remotely months 13-24 in the form of audio podcasts and email newsletters.