Choose a product containing mixed tocopherols. Begin by taking 200 IU daily, then gradually increase the dosage until you are taking 400 IU twice daily. The reason may be that when a vitamin E molecule is damaged by interacting with a free radical, C converts it back to its original form, giving it, in effect, a second life. To minimize stomach upset, take vitamin E at mealtimes or with a snack. People with anemia, poorly clotting blood, liver disease, or overactive thyroid should not take vitamin E supplements without consulting a doctor.
Selenium is needed for production of testosterone.
When selenium levels are low, sperm are immobile because the tail is weakened or deformed. In men, selenium is essential for sperm production-almost half of the male body's supply of selenium is concentrated in the testicles and the seminal ducts adjacent to the prostate gland. Selenium is an antioxidant that prevents free-radical damage, works synergistically with vitamin E, and preserves tissue elasticity. Take 200 micrograms of selenium daily. Do not exceed the dosage as it is toxic at levels above recommended.