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Originally Posted by JawD
What happens to the vits / mins that your body does not need? Its it sent out as waste? Also, can too much of a vitamin do harm? I think you can take in too much vit C for instance, though I'm not sure what is considered "too much".
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Yes, that's exaclty what happens. Since they aren't stored like macro nutrients, they are 'expelled' from your system. Ever wonder why you have yellow wee wee a little while after taking a multi? There it all goes, down the tube. Alot of that has to do with bio-availability though. Some vitamins have up to 2000% percent of your RDA. This is due to the fact that your body is only going to absorb betwen 5-10% of that total. I wouldn't worry about getting 'too much' of any of them unless you are specifically adding alot of one or the other to your day e.g. too much iron for men is bad but, unless you are taking iron supps., you aren't od'ing.
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