Resveratrol Extra Strength
Resveratrol is an antioxidant, commonly found in red grapes. It seems to mimic the anti-aging effects of calorie restriction. Animal studies indicate it decreases the harmful effects of high fat, high calorie diets. This is probably due to increased fat metabolism by activating the SIRT-1 enzyme. SIRT-1 improves blood sugar metabolism, insulin sensitivity and cell survival. Pterostilbene is a more potent derivative of resveratrol found in blueberries. Animal studies show that pterostilbene has similar effects to resveratrol but reaches higher levels in the blood and lasts longer in the body. Grape seed polyphenols are a source of antioxidants for the maintenance of good health.