Vitamin E

Supplements · Vitamins · Supplement, Typed Supps

A real antioxidant for your cell membranes — but not the heart protector it was sold as.

Stage by stage

Intake (Softgel): Fat-soluble, following the same absorption route as vitamin D and A.
Small intestine (Micelle transport): Absorbed via bile-formed micelles alongside dietary fat.
Bloodstream (Bound to lipoproteins): Circulates bound to lipoproteins, the same way other fat-soluble compounds travel.
Cell membranes (Antioxidant protection): Protects cell membranes throughout the body from oxidative damage.

Correcting a documented deficiency — strong evidence. Clear — but genuine deficiency is rare outside fat-malabsorption conditions and some inherited disorders.
Slowing progression of non-alcoholic fatty liver disease — moderate evidence. A large trial found improvement in liver histology in non-diabetic adults at 800 IU daily. One of the few high-dose uses with real support.
Preventing cardiovascular disease — insufficient evidence. Repeatedly tested at high doses and repeatedly null. The observational promise did not survive randomised trials.
Preventing cancer — insufficient evidence. Worth stating plainly: a large prostate cancer prevention trial found more cancers in the vitamin E arm at 400 IU daily, not fewer.

15–100 mg (22–150 IU) daily

Upper limit: 1,000 mg daily of supplemental alpha-tocopherol

Take with a fat-containing meal.

Warfarin and other anticoagulants: High doses add to bleeding risk and can affect INR control. (high)
Antiplatelet drugs: Additive effect on bleeding time. (moderate)
Statins and niacin: High-dose antioxidant combinations blunted the HDL response in at least one trial. (moderate)

“Vitamin E prevents heart disease.” In reality: Large trials haven’t shown it reduces heart disease risk in people without a deficiency.