Quercus robur

Quercus robur extract or French oak wood extract as a natural supplement that may improve fatigue or endurance in some people. Quercus robur extract is marketed under the brand name Robuvit®.

ME/CFS
Small preliminary took place in 2014 and 2015, and showed improvement in chronic fatigue syndrome patients.

Costs and availability
Quercus robur extract is available over the counter. It is also marketed under the brand name Robuvit.

Notable studies

 * 2014, Improved management of primary chronic fatigue syndrome with the supplement French oak wood extract
 * 2015, Robuvit® (Quercus robur extract) supplementation in subjects with chronic fatigue syndrome and increased oxidative stress. A pilot registry study
 * 2018, Robuvit®: improvement of fatigue in medical convalescence
 * 2019, Oxidative stress parameters after abdominal hysterectomy and their relationships with quality of recovery