Published in the journal Nutrients, the study found “trivial-to-small effects” of the rhodiola supplement on mental fatigue, visuo-cognitive processing or perceived exertion compared to placebo.
The results suggest the RhodioZen ingredient from France-based Pharmanager Ingredients may have an ergogenic effect “mainly on physical rather than cognitive domains,” according to researchers at the Faculty of Sport Sciences, University of Granada, Spain, and other institutions in Spain and China.
Ergogenics for performance
Previous research indicates that plant-based supplements such as ginseng, ashwagandha and Brussels chicory may reduce mental…