WORKOUT brand products are powered by TheaFit, our proprietary Theaflavin-Enriched Black Tea Extract. World renowned sports scientist, inventor and recipient of the National Strength and Conditioning Association (NSCA) 2017 Outstanding Sport Scientist of the Year, Dr. Shawn Arent originally studied the effects of a high potency theaflavin enriched black tea extract (TheaFit) on delayed onset muscle soreness (DOMS), oxidative stress and inflammation. Research consisted of double blind, placebo controlled, cross-over studies which are considered the gold standard of human clinical trials and widely trusted as the most rigorous and objective science. Two U.S. patents were granted for increased exercise performance and reduced recovery time. 


The results of the clinical trial were published in the peer-reviewed Journal of the International Society of Sports Nutrition in 2010.  The authors concluded:  “Consumption of (TheaFit) lead to improved recovery and a reduction in oxidative stress and delayed onset muscle soreness.  An improved rate of recovery can benefit all individuals engaging in high intensity, anaerobic exercise as it facilitates increased frequency of exercise."


Dr. Arent adds, "One of the keys to continued progress with training is the ability to recover quicker not only within a workout, but also from session to session. One limiting factor in that is the development of delayed onset muscle soreness (DOMS), which is often associated with reduced power. Unfortunately, some of the things that can be a part of developing DOMS (inflammation, oxidative stress, muscle "damage'? also happen to be responses that are an important part of long-term adaptation. Solutions like taking NSAIDs wind up potentially impairing progress. That's one of the things that made the research findings for the high-potency black tea extract (TheaFit) so unique - these "necessary" responses were still able to occur, but the recovery from them was significantly faster. This resulted in not only greater performance within the interval session, but also less soreness    24 and 48 hours later. Subjects were able to do more work with less physiological stress and with faster recovery." 


Shawn M. Arent, PhD, CSCS*D, FISSN, FACSM 

Director, IFNH Center for Health and Human Performance

Director, Graduate Program in Kinesiology & Applied Physiology 
Dept. of Kinesiology & Health - Rutgers University 
 2017 NSCA Outstanding Sport Scientist of the Year