What Are Some Side Effects of Vitamin E?


Quick Answer

The side effects of vitamin E include blurred vision, dizziness, diarrhea, nausea, stomach cramps and weakness, according to Drugs.com. These side effects are usually with doses that are greater than 400 units per day.

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Full Answer

Vitamin E is most likely safe when consumed by healthy adults at doses that are found naturally in food. People over the age of 65 can safely take doses up to 800 international units by mouth daily for up to four months, reports Mayo Clinic.

Vitamin E is usually safe for people with diabetes or those using medications that help to lower blood sugar, concludes Mayo Clinic.

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