Assertion: vitamin e | /r/CapableOf | protect against cancer
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text: Although it is recognized that vitamin E is an antioxidant and prevents free-radical reactions, the theory that vitamin E removes the free radicals and protects against a variety of diseases - such as heart disease, cancer, Alzheimer's disease, Parkinson's disease and age-related macular degeneration, to name a few - has yet to be demonstrated with any certainty.