What the research says

Research on vitamin E use for certain conditions shows the following:

• Alzheimer's disease. Some research shows that high-dose vitamin E might slow mild to moderate Alzheimer's disease. Other studies don't show this. Vitamin E supplements appear to have no effect on whether people with mild cognitive impairment go on to get Alzheimer's disease.
• Liver disease. Studies show that vitamin E might improve symptoms of metabolic dysfunction-associated steatotic liver disease.
• Preeclampsia. Increasing intake of vitamin E has not been shown to prevent this pregnancy condition that affects blood pressure.
• Prostate cancer. Research shows that vitamin E and selenium supplements don't prevent prostate cancer. There also is concern that vitamin E supplements might raise the risk of prostate cancer.