Turner-McGrievy G, Davidson C, et al. 2015

25592014

Comparative effectiveness of plant-based diets for weight loss: a randomized controlled trial of five different diets.

Turner-McGrievy G, Davidson C, Wingard E, Wilcox S, Frongillo E

Nutrition (Burbank, Los Angeles County, Calif.)

2015

31

2

350-358

Randomized Controlled Trial

Some concerns

Overweight or obese (body mass index [BMI] 25-49.9 kg/m2) adults, who were interested in losing weight, were between the ages of 18 and 65 y with a stable medical status (e.g., no uncontrolled thyroid conditions or diabetes), and were willing to accept random assignment of diet,

Participants who have an unstable medical status or uncontrolled thyroid condition, have a BMI outside the range of 25-49.9 kg/m2, are smokers, are unable to attend required meeting and assessment visits, have a psychiatric illness, are in treatment for alcohol or drug dependency, have an eating disorder, are currently participating in a weight-loss program, or are pregnant, breastfeeding, or planning on becoming pregnant during the study.

The goal of this study was to examine the differences in weight loss among participants randomized to adopt an omnivorous, semi-vegetarian, pesco-vegetarian, vegetarian, or vegan diet.

Neither participants nor study personnel were blinded to diet assignment

University of South Carolina, USA

Not reported

Not reported