Cesari F, et al. - In this CARDIVEG study, which included 80 clinically healthy subjects, researchers assessed the possible connection between dietary habits and progenitor cells via data obtained from a randomized crossover trial using two different diets—lacto-ovo-vegetarian (VD) and Mediterranean (MD). They randomized participants with low-to-moderate cardiovascular risk profiles to isocaloric VD and MD diets lasting 3 months each, which then crossed. Investigators found that VD diet in omnivores for 3 months did not lead to significant progenitor cell improvement. In this study population, MD, but not VD, had a significant, positive effect on the circulation of progenitor cells, likely acting through modulation of inflammatory parameters.