What is the point in vitamin pills that exceed the recommended daily amount?

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Offline thedoc

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Cynthia Ho asked the Naked Scientists:
   Why do many vitamin and supplement pills exceed the recommended dietary allowance (RDA), with in certain cases the doses can be 3000% of the RDA? Isn't this a waste of vitamins and minerals as the excess isn't store in the body, but gets excreted?
Many thanks.
What do you think?
« Last Edit: 07/07/2016 16:35:35 by chris »

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Offline Bored chemist

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Their point is to make money for the manufacturer, seller etc.
There might be a case for some vitamins which are stored if you had a tablet with 7 times the RDA and took it weekly.
But, of course, the best plan is to eat a diet that provides the vitamins you need in a steady supply.
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Offline alancalverd

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There was a suggestion that excess vitamin C would stave off the common cold, but it doesn't.

Excess vitamin A will kill you but will be very difficult to detect.

Excess of other vitamins makes money for the manufacturer.
helping to stem the tide of ignorance

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Offline Bored chemist

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One of the D vitamins is used as a rat poison; does that count?
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