Vitamin E overdose may cause excessive blood thinning and lead to a stroke or an increased risk of death. If you have any concerns about potential interactions between vitamin E supplements and your medications, you should consult your healthcare provider. They can also interfere with tamoxifen, a drug used to treat breast cancer, and cyclosporine, an immunosuppressant used by people who have received an organ transplant ( 9). However, high dose vitamin E supplements - those which provide more than 300 mg per day - can interact with the blood thinners aspirin and warfarin ( 9). There appears to be little risk of vitamin E interacting with medications when it’s consumed at normal levels. Given these potentially severe risks, you should not take large doses of vitamin E supplements. It has also been linked to an increased risk of hemorrhagic stroke, or a stroke caused by bleeding in the brain ( 7).įurthermore, one study suggests that excessive vitamin E intake is linked to a higher risk of death from any cause, but more research is needed to explore this possibility ( 8). It can likewise interfere with blood clotting, which is your body’s natural defense against excessive bleeding after an injury ( 1, 6). If taken in high doses, it can build up in your body fat and cause complications.Įxcessive vitamin E intake can cause blood thinning and lead to fatal bleeding. Vitamin E is a fat-soluble antioxidant vitamin. Given that fat-soluble vitamins are stored in fat, they can build up in your body fat, especially if you’re taking in excessive amounts through diet or supplements ( 2).įor vitamin E, the Upper Limit (UL) - or the amount that most people can consume daily through food and supplements without complications - is 1,000 mg ( 1).
The Daily Value (DV) for vitamin E is 15 mg per day. One of its key functions is to keep blood vessels dilated and prevent clots from forming in your blood vessels ( 1). It may decrease your risk of heart disease, certain cancers, vision problems, and brain disorders ( 1).
Vitamin E is a fat-soluble vitamin that functions as an antioxidant. Vitamin E toxicity is when an excessive amount of vitamin E builds up in your body and causes health complications.
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