5. Conclusions
The aim of the study was to gather initial evidence on the acute effect of switching from an omnivorous to a vegan diet in the first 8 weeks. It has been shown that there were no changes in the upper and lower body performance. This is probably due to the high calorie intake combined with a high carbohydrate intake for both groups. In addition, a slight improvement in the body weight and BMI was observed. However, a significant reduction in the protein intake was observed during the vegan phase. The influence of these results on muscular adaptation and body composition cannot be assessed at this stage. In addition, no statement can be made about the distribution of amino acids or fatty acids during the two dietary phases as this was also not a part of this study. Therefore, these aspects should be taken into account in future studies.