Super Immunity Booster Fights Effects of Physical Stress
Posted Oct 16 2008 7:58pm
An antioxidant found naturally in many fruits and vegetables has proven to reduce illness and mental fatigue in physically stressed people, claims a recent study from Appalachian State University in North Carolina. Quercetin--a flavonoid in apples, red grapes, green tea, onions, broccoli and green leafy vegetables--is the first plant compound proven in a controlled clinical trial to reduce susceptibility to viral illnesses.
The study took 40 cyclists and had them train to the point of exhaustion over the course of five weeks. Half were give a placebo while the rest were given 1,000 milligrams of quercetin a day (the average U.S. citizen consumes 25-50 milligrams a day through diet). While physical stress from extreme exercise weakens the immune system, only five percent of the participants taking quercetin reported any sickness compared to almost half of the cyclists taking the placebo. No adverse side effects were found from taking quercetin.
With such impressive results, researchers are now setting their sights to find out if quercetin can help the average person combat everyday stress.