Vitamin E 400 IU from webber naturals offers naturally sourced vitamin E (d-alpha-tocopherol), a form of vitamin E which is almost twice as bioavailable to its synthetic counterpart (dl-alpha-tocopherol). Vitamin E is a fat-soluble vitamin and an antioxidant that protects cells from pollution, toxins, and free radical damage. Vitamin E supports cardiovascular health by blocking the formation of compounds that are associated with free-radical damage. In one large epidemiological study a low level of vitamin E was found to be a greater risk for heart attack and stroke than cholesterol. Low vitamin E levels were predictive in 70% of cases for heart attack whereas high cholesterol and high blood pressure accounted for 29% and 25% of the study cases, respectively. Vitamin E's ability to protect cell membranes makes it valuable for anyone who is not eating an antioxidant-rich diet and who leads an active lifestyle, since physical exertion increases production of free radicals.