Why vitamin pills don't work, and may be bad for you - BBC Future

We dose up on antioxidants as if they are the elixir of life. At best, many of these supplements are ineffective. At worse, they may just send you to an early grave.

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"Over the years, vitamin C, and many other dietary supplements, have found little backing from scientific study. In fact, with every spoonful of supplement he added to his orange juice, Pauling was more likely harming rather than helping his body. His ideas have not just proven to be wrong, but ultimately dangerous.

...

We dose up on antioxidants as if they are the elixir of life. At best, many of these supplements are ineffective. At worse, they may just send you to an early grave.

...

"Over the years, vitamin C, and many other dietary supplements, have found little backing from scientific study. In fact, with every spoonful of supplement he added to his orange juice, Pauling was more likely harming rather than helping his body. His ideas have not just proven to be wrong, but ultimately dangerous.

...