The prescription of nutraceuticals is often based on theory and pre-clinical evidence (in-vivo or in-vitro) that a substance might behave in a particular way. However, we don't know if something works on living humans with a specific condition until we conduct clinical trials and observational studies. The following result from a recent clinical trial is …

Continue reading RCT finds no efficacy for L-theanine as an adjunct treatment for anxiety symptoms