vitamin e
5 interactions related to vitamin e
blood thinner + vitamin e
High-dose vitamin E supplements can add to the bleeding risk of anticoagulant and antiplatelet medications by inhibiting platelet aggregation and antagonizing vitamin K–dependent clotting factors.
vitamin e + vitamin c
Vitamin C regenerates the active form of vitamin E. After vitamin E neutralizes a lipid free radical and becomes a tocopheroxyl radical, vitamin C donates an electron at the membrane surface to restore it. This recycling loop extends antioxidant capacity at the lipid-water interface of cell membranes. It is a beneficial synergy, not a risk.
fat-soluble vitamins + dietary fat
Vitamins A, D, E, and K depend on bile-driven micelle formation in the small intestine to be absorbed, and that process is triggered by dietary fat. Taking these vitamins with a fat-free meal or on an empty stomach reduces how much you absorb, while taking them with a meal that contains some fat improves absorption. Controlled studies in vitamin D show meaningfully greater absorption when the supplement is taken with fat.
vitamin e + platelet function test
Higher-dose vitamin E (alpha-tocopherol) can inhibit platelet aggregation through a protein kinase C-dependent mechanism, prolonging bleeding times and producing abnormal results on platelet function tests such as the PFA-100, VerifyNow, and light transmission aggregometry. The effect is most pronounced alongside aspirin or other antiplatelet drugs and can complicate a workup for a suspected bleeding disorder.
vitamin e + selenium
Vitamin E and selenium are complementary antioxidants. Selenium is the cofactor for glutathione peroxidase, which clears lipid peroxides and spares vitamin E, while vitamin E intercepts free radicals in membranes and reduces the demand on the selenium-dependent enzyme. The partnership is well established in animal and mechanistic studies; clinical benefit of the combination in people is more limited.