Vitamin E refers to two families of biologically active substances, which are tocopherols and the less biologically active substances with saturated side chains, tocotrienols. Both forms, the natural and synthetic forms of α-tocopherol are absorbed, but not to the same extent. Only half of its synthetic form remains in the plasma, while the remainder is excreted. That's why its physical form is twice as drastic than the synthetic one. Recent studies have shown that tocotrienols, with respect to α-tocopherol, have a stronger antioxidant effect (40 to 60 times) and significantly reduce the levels of LDL (bad cholesterol) in the blood. 100% natural NOW® E-1000 DA offers 1000 IU d-alpha Tocopheryl Acetate per tablet, thus enhancing the good health of the cardiovascular and immune system, ligaments and skin through its antioxidant action. The usefulness of vitamin E for all cell types is given, but it has also been shown to protect the membranes of the blood, nervous system, skeletal muscle, and retina in particular from the negative effects of free radicals. Investigations have also shown that very intense exercise suppresses the immune system (supraventricular syndrome), so the intake of vitamin E supplement protects the body by reducing oxidative stress.