Curcuminoids not only help neutralize free radicals, but may actually prevent free radical damage from starting in the first place. Black pepper contains only a small percentage of the crystalline alkaloid piperine. Using this highly concentrated extract of Bioperine , makes larger quantities of piperine readily available for assimilation, without a long digestive process, and without the necessity of consuming an excess of overly stimulating pepper. Black tea is fermented green tea, and is not considered to be as healthful as green tea. Green tea is steamed to prevent fermentation.
Tea does contain some caffeine and other xanthinealkaloids.
This enzyme is most active in the liver. Glutathione peroxidase concentrates in the heart muscle and skeletal muscles. This enzyme helps destroy the peroxide radical before it can attack the cellular membrane which surrounds and protects the cell. Selenium is also believed to enhance the effectiveness of Vitamin E, another antioxidant nutrient. Selenium, bound to the amino acid methionine as L-selenomethione, can be incorporated into tissue proteins without further metabolic change.