As previously noted, many anti-oxidants are essential nutrients. Natural anti-oxidants, like vitamin C and E, work synergistically. Anti-oxidants may be more effective if obtained from a diet rich in fruits and vegetables. Nutritionists recommend eating 6 or more daily servings of anti-oxidant rich fruits and vegetables. Everyone agrees the use of antioxidant supplements for anti-aging may be helpful, but there is no agreement on what the most effective supplement dosages should be.