What Are the Side Effects of Vitamin E?

Side effects of vitamin E include nausea, vomiting, dizziness, headache, blurred vision, skin fissures, cheilitis, angular cheilitis, diarrhea, breast enlargement, and fatigue.

What Are the Side Effects of Vitamin E?

Vitamin E is a fat-soluble vitamin whose hydrolysis product is tocopherol. Its primary function is antioxidant activity. Tocopherol promotes sex hormone secretion—enhancing sperm motility and count in men, and increasing estrogen levels in women to improve fertility and prevent miscarriage. It is also used in the management of male infertility, burns, frostbite, capillary bleeding, and menopausal syndrome.

Recent studies have further revealed that vitamin E can inhibit lipid peroxidation within the eye’s lens, promote peripheral vasodilation, improve blood circulation, and help prevent the onset and progression of myopia. However, experimental research indicates that vitamin E possesses anticoagulant activity. Prolonged high-dose intake may increase the risk of hemorrhagic stroke and interfere with the absorption of other fat-soluble vitamins. Moreover, high-dose vitamin E may induce platelet aggregation and thrombus formation, potentially leading—especially in severe cases—to thrombophlebitis or pulmonary embolism. Both men and women may experience gynecomastia, muscle weakness, headache, dizziness, vertigo, blurred vision, cheilitis, angular cheilitis, skin fissures, and urticaria. It may exacerbate symptoms of diabetes or angina pectoris; elevate serum cholesterol and triglyceride levels; increase platelet count and activity while impairing immune function; disrupt hormonal metabolism; and reduce prothrombin levels.

It is recommended that vitamin E be used rationally under the guidance of a qualified healthcare professional to avoid adverse outcomes.

We hope the above information is helpful to you. Wishing you a happy and healthy life!