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BioMed Research International
Volume 2017, Article ID 9626390, 8 pages
Research Article

Effects of an Ad Libitum Consumed Low-Fat Plant-Based Diet Supplemented with Plant-Based Meal Replacements on Body Composition Indices

1Barbara Jakše s.p., SI-1230 Domžale, Slovenia
2Faculty of Sport, University of Ljubljana, Gortanova 22, SI-1000 Ljubljana, Slovenia
3University Medical Center Ljubljana, Zaloška 2, SI-1525 Ljubljana, Slovenia

Correspondence should be addressed to Jernej Pajek;

Received 8 November 2016; Revised 8 February 2017; Accepted 1 March 2017; Published 28 March 2017

Academic Editor: Shahrzad Bazargan-Hejazi

Copyright © 2017 Boštjan Jakše et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To document the effect of a diet free from animal-sourced nutrients on body composition indices. Methods. This was a nonrandomized interventional ()-control () trial with a 10-week, low-fat, plant-based diet supplemented with two daily meal replacements. The meals were allowed to be eaten to full satiety without prespecified calorie restrictions. Control subjects received weekly lectures on the rationale and expected benefits of plant-based nutrition. Body composition indices were measured with bioimpedance analysis. Results. Relative to controls, in cases, postintervention body fat percentage was reduced by 4.3 (95% CI 4.1–4.6)% points (a relative decrement of −13.4%), visceral fat by 1.6 (95% CI 1.5–1.7) fat cross-sectional surface units, and weight by 5.6 kg (95% CI 5.2–6), while muscle mass was reduced by 0.3 kg (95% CI 0.06–0.5) with a relative increase of muscle mass percentage of 4.2 (3.9–4.4)% points. Analysis of covariance showed significantly larger adjusted fat reductions in cases compared to controls. Late follow-up revealed further weight loss in 60% of cases and no significant change in controls. Conclusions. Low-fat, plant-based diet in free-living nonresidential conditions eaten ad libitum enables significant and meaningful body fat reductions with relative preservation of muscle mass. This trial is registered with NCT02906072,