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A two-year randomized weight loss trial comparing a vegan diet to a more moderate low-fat diet.
Obesity (Silver Spring). 2007 Sep; 15(9):2276-81.O

Abstract

OBJECTIVE

The objective was to assess the effect of a low-fat, vegan diet compared with the National Cholesterol Education Program (NCEP) diet on weight loss maintenance at 1 and 2 years.

RESEARCH METHODS AND PROCEDURES

Sixty-four overweight, postmenopausal women were randomly assigned to a vegan or NCEP diet for 14 weeks, and 62 women began the study. The study was done in two replications. Participants in the first replication (N = 28) received no follow-up support after the 14 weeks, and those in the second replication (N = 34) were offered group support meetings for 1 year. Weight and diet adherence were measured at 1 and 2 years for all participants. Weight loss is reported as median (interquartile range) and is the difference from baseline weight at years 1 and 2.

RESULTS

Individuals in the vegan group lost more weight than those in the NCEP group at 1 year [-4.9 (-0.5, -8.0) kg vs. -1.8 (0.8, -4.3); p < 0.05] and at 2 years [-3.1 (0.0, -6.0) kg vs. -0.8 (3.1, -4.2) kg; p < 0.05]. Those participants offered group support lost more weight at 1 year (p < 0.01) and 2 years (p < 0.05) than those without support. Attendance at meetings was associated with improved weight loss at 1 year (p < 0.001) and 2 years (p < 0.01).

DISCUSSION

A vegan diet was associated with significantly greater weight loss than the NCEP diet at 1 and 2 years. Both group support and meeting attendance were associated with significant weight loss at follow-up.

Authors+Show Affiliations

University of North Carolina at Chapel Hill, 2217 McGavran-Greenberg Hall, CB 7461, Chapel Hill, NC 27599-7461, USA. brie@unc.eduNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial

Language

eng

PubMed ID

17890496

Citation

Turner-McGrievy, Gabrielle M., et al. "A Two-year Randomized Weight Loss Trial Comparing a Vegan Diet to a More Moderate Low-fat Diet." Obesity (Silver Spring, Md.), vol. 15, no. 9, 2007, pp. 2276-81.
Turner-McGrievy GM, Barnard ND, Scialli AR. A two-year randomized weight loss trial comparing a vegan diet to a more moderate low-fat diet. Obesity (Silver Spring). 2007;15(9):2276-81.
Turner-McGrievy, G. M., Barnard, N. D., & Scialli, A. R. (2007). A two-year randomized weight loss trial comparing a vegan diet to a more moderate low-fat diet. Obesity (Silver Spring, Md.), 15(9), 2276-81.
Turner-McGrievy GM, Barnard ND, Scialli AR. A Two-year Randomized Weight Loss Trial Comparing a Vegan Diet to a More Moderate Low-fat Diet. Obesity (Silver Spring). 2007;15(9):2276-81. PubMed PMID: 17890496.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A two-year randomized weight loss trial comparing a vegan diet to a more moderate low-fat diet. AU - Turner-McGrievy,Gabrielle M, AU - Barnard,Neal D, AU - Scialli,Anthony R, PY - 2007/9/25/pubmed PY - 2008/1/11/medline PY - 2007/9/25/entrez SP - 2276 EP - 81 JF - Obesity (Silver Spring, Md.) JO - Obesity (Silver Spring) VL - 15 IS - 9 N2 - OBJECTIVE: The objective was to assess the effect of a low-fat, vegan diet compared with the National Cholesterol Education Program (NCEP) diet on weight loss maintenance at 1 and 2 years. RESEARCH METHODS AND PROCEDURES: Sixty-four overweight, postmenopausal women were randomly assigned to a vegan or NCEP diet for 14 weeks, and 62 women began the study. The study was done in two replications. Participants in the first replication (N = 28) received no follow-up support after the 14 weeks, and those in the second replication (N = 34) were offered group support meetings for 1 year. Weight and diet adherence were measured at 1 and 2 years for all participants. Weight loss is reported as median (interquartile range) and is the difference from baseline weight at years 1 and 2. RESULTS: Individuals in the vegan group lost more weight than those in the NCEP group at 1 year [-4.9 (-0.5, -8.0) kg vs. -1.8 (0.8, -4.3); p < 0.05] and at 2 years [-3.1 (0.0, -6.0) kg vs. -0.8 (3.1, -4.2) kg; p < 0.05]. Those participants offered group support lost more weight at 1 year (p < 0.01) and 2 years (p < 0.05) than those without support. Attendance at meetings was associated with improved weight loss at 1 year (p < 0.001) and 2 years (p < 0.01). DISCUSSION: A vegan diet was associated with significantly greater weight loss than the NCEP diet at 1 and 2 years. Both group support and meeting attendance were associated with significant weight loss at follow-up. SN - 1930-7381 UR - https://www.unboundmedicine.com/medline/citation/17890496/A_two_year_randomized_weight_loss_trial_comparing_a_vegan_diet_to_a_more_moderate_low_fat_diet_ L2 - https://doi.org/10.1038/oby.2007.270 DB - PRIME DP - Unbound Medicine ER -