VITAMIN E - Recommended for people taking iron supplements and oral contraceptives. Vitamin E is a potent antioxidant, protecting cells against oxidative damage, cancer, and cardiovascular disease. It is also an essential vitamin for the nervous and immune systems. Take 1 capsule daily, with your main meal. Format: In PET bottles of 100 vegetable capsules. Each capsule contains 20 mg of D, L-alpha-tocopherol. 1 capsule is equivalent to 100% of the recommended daily dose of vitamin E.