• Pure grape juice and grapes are high in quercetin dihydrate.red wine and red grapes image by Maria Brzostowska from Fotolia.com
  
  Quercetin dihydrate is a potent anti-oxidant and bioflavonoid found in fruits and vegetables such as grapes. This is one of the nutrients that gives wine its health-boosting powers. Antioxidants are nutrients that fight inflammation and free radical damage in the body. As people age, free radicals (un-paired molecules) destroy cells and tissues. Taking anti-oxidant rich nutrients and eating a healthy diet helps fight against this damage and preserve your health.
  
  

Heart Health

• According to "Life Extension" magazine, quercetin offers protection against age-related diseases. This compound has anti-hypertensive effects; it protects blood vessels and improves blood flow throughout the body. A Spanish study concluded that quercetin reduced blood pressure in rats with high blood pressure by 18 percent within 5 weeks. All of these benefits help to keep the heart healthy, which prevents heart disease and stroke.
  
  

Anti-oxidant Power

• Anti-oxidants fight free radicals, improving overall health and slowing down the aging process. Free radicals occur naturally as people age, but these un-paired molecules can increase even more because of lifestyle habits such as smoking, drinking alcohol and eating a poor diet. Quercetin dihydrate is often added to sports drinks and other vitamin pills because of its potent anti-oxidant properties.
  
  

Anti-Inflammatory

• Quercetin dihydrate also has anti-inflammatory effects that are essential for improving overall health. According to "Life Extension" magazine, quercetin reduced the activity of nuclear factor-kappaB, along with the inflammatory cytokines that it stimulates. NF-kB levels are strongly associated with coronary events such as heart disease and stroke. Keeping these levels under control is vital, and quercetin helps to reduce inflammation caused by these activities in the body. In addition, this nutrient helps to reduce swelling and other inflammation-related issues in the body.
  
  

Joint Health

• Quercetin also improves joint health by increasing flexibility and reducing inflammation in the joints. Overall, quercetin supplements benefit the body in many ways. Quercetin is also found in foods such as grapes, apples and dark leafy green vegetables.