A randomized, double-blind, placebo-controlled, crossover study of 12 healthy, active (but not highly trained) men and women who took 1000 mg of quercetin per day for 7 days found improvements in endurance, VO2max and treadmill time trial performance.***
A double-blind, placebo-controlled, crossover study of 11 elite cyclists who took 250 mg of quercetin twice daily for 42 days. The study's results demonstrated an improvement in cycling time trial performance over the last 5km.**
A randomized, double-blind, placebo-controlled, crossover study of 33 university employees - non-athletes, working class, skilled trade professionals, ages 29-63 years - who took 500 mg of quercetin per day for 24 days. The study reported a reduction in mental fatigue and an improvement in concentration.*
A randomized, double-blind, placebo-controlled clinical study of forty test subjects. Subjects were subjected to extreme physical stress during a five-week period. Half were given 1,000 mg of quercetin daily and half were given a placebo. The quercetin group exhibited overall better health than the placebo group.****
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.
* Source: The Effects of an Antioxidant Drink on Work Performance and Health Parameters in an Industrial Setting, Durak & Bell, 2006, Univ. of Santa Barbara, CA (unpublished study).
** Source: Dietary Antioxidant Supplementation Combined with Quercetin Improves Cycling Time Trial Performance. MacRae Holden, Mefferd Kari. International Journal of Sport Nutrition and Exercise Metabolism, 2006, 16, 405-419
*** Source: The Dietary Flavonold Quercetin Increases VO2max and Endurance Capacity. Davis JM, Carlstedt CJ et al. International Journal of Sports Nutrition and Exercise Metabolism, June 2009
**** Source: David C Nieman, Dru A. Henson, Sarah J. Gross, David P. Jenkins, J. Mark Davis, E. Angela Murphy, Martin D. Carmichael, Charles L. Dumke, Alan C. Utter, Steven R. McAnulty, Lisa S. McAnulty, and Eugene P. Mayer. Official Journal of the American College of Sports Medicine, 2007, 1561-1569.
At the core of the patented FRS® Healthy Energy® formula is QU995 The World’s Purest Quercetin®. QU995™ is produced by our sister company, Quercegen Pharmaceuticals, which domesticated and grows the quercetin-rich medicinal plant Uncaria Elliptica at its farms in Brazil, then uses a patented extraction and purification process to refine the quercetin in Uncaria Elliptica to a purity of 99.5% or greater – The World’s Purest Quercetin® commercially available. Uncaria Elliptica is fully traceable and respects biodiversity on the borders of the Brazilian Amazon Rain Forest.
Additionally, QU995™ has had GRAS (Generally Recognized As Safe) Notified Status from the U.S. Food and Drug Administration since November 22, 2010 (GRN 341).