Vitamin E
UL of vitamin E
1000 mg/day
RDA of vitamin E
15 mg/day
vitamin E is absorbed with
dietary fat
vitamin E deficiencies usually caused by
diseases that cause malabsorption of fat
synthetic form of alpha-tocopherols
dl-alpha-tocopherol
vitamin E is a
anticoagulant
primary function of vitamin E
antioxidant
vitamin E has role in
immune system
erythrocyte hemolysis
rupture of red blood cells
why is vitamin E deficiency uncommon?
because since vitamin E is fat-soluble, we store adequate amounts in our fatty tissue even when our current intake is low
remaining vitamin E is stored where
cell membranes
most potent form of vitamin E
alpha-tocopherol
vitamin E prevents
LDLs from being oxidized
90% of vitamin E is stored where
adipose tissue
natural form of alpha-tocopherols
d-alpha-tocopherol
main symptom of deficiency
erythrocyte hemolysis
when small intestine, liver, gallbladder, and pancreas are not functioning correctly, then
fat and fat-soluble vitamins (like vitamin E) cannot be absorbed, leading to deficiency
vitamin E also prevents
membranes of red blood cells from being oxidized
active form of vitamin E
tocopherols
non-active form of vitamin E
tocotrienols
primary sources of vitamin E
vegetable oils and nuts
vitamin E improves
vitamin A absorption if vitamin A intake is low