11. Natural alpha-tocopherol is the RRR-alpha ( or ddd-alpha ) form. 12. It is important, however, that carotenoid and tocopherol levels remained within the normal ranges. 13. In plants it is also the precursor to carotenoids, gibberellins, tocopherols , and chlorophylls. 14. The plant has a potent antioxidant activity with a significant ?-tocopherol equivalent Vitamin E. 15. Study subjects took 50 units of vitamin E as alpha tocopherol , the most biologically active form. 16. Synthetic Vitamin E is labeled dl-alpha tocopherol ; natural is labeled d-alpha tocopherol. 17. Synthetic Vitamin E is labeled dl-alpha tocopherol; natural is labeled d-alpha tocopherol . 18. Alpha tocopheryl esters are de-esterified in the gut and then absorbed as the free tocopherol . 19. For example, ?-tocopherol is present in higher concentrations in the secretions of red morphs. 20. ?-Tocopherol is a form of vitamin E that is preferentially absorbed and accumulated in humans.
