Does the type of weight loss diet affect who participates in a behavioral weight loss intervention? A comparison of participants for a plant-based diet versus a standard diet trial.
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Date
2013-12-24
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Abstract
Studies have found that people following plant based eating styles such as vegan or vegetarian diets often have different demographic characteristics eating styles and physical activity PA levels than individuals following an omnivorous dietary pattern There has been no research examining if there are differences in these characteristics among people who are willing to participate in a weight loss intervention using plant based dietary approaches as compared to a standard reduced calorie approach which does not exclude food groups The present study compared baseline characteristics demographics dietary intake eating behaviors Eating Behavior Inventory and PA Paffenbarger Physical Activity Questionnaire of participants enrolling in two different 6 month behavioral weight loss studies the mobile Pounds Off Digitally mPOD study which used a standard reduced calorie dietary approach and the New Dietary Interventions to Enhance the Treatments for weight loss New DIETs study which randomized participants to follow one of five different dietary approaches vegan vegetarian pesco vegetarian semi vegetarian or omnivorous diets There were no differences in baseline demographics with the exception of New DIETs participants being older 48 5 8 3years versus 42 9 11 2 P 0 001 and having a higher Body Mass Index BMI 35 2 5 3kg m 2 versus 32 6 4 7kg m 2 P 0 001 than mPOD participants In age and BMI adjusted models there were no differences in EBI scores or in any dietary variables with the exception of vitamin C 85 6 5 9mg d mPOD versus 63 4 7 4mg d New DIETs P 0 02 New DIETs participants reported higher levels of intentional PA day 180 0 18 1kcal d than mPOD participants 108 8 14 4kcal d P 0 003 which may have been the result of New DIETs study recommendations to avoid increasing or decreasing PA during the study The findings of this study demonstrate that using plant based dietary approaches for weight loss intervention studies does not lead to a population which is significantly different from who enrolls in a standard behavioral weight loss study using a reduced calorie dietary approach
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Client, Access to information or data, Nutrition, Obesity, Social and behavior change communication, Health education or promotion, Disease prevention