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Ivy Suen
Yahoo User
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 Posted: Sun Oct 05, 2008 5:14 pm Post subject: Why are vitamin supplements have over 100% RDA? |
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| Most of the bottles I get like Vitamin C or the B-Complex always have over 100%. Some of them are like 1000% or 3000%? If we are only supposed to take 100% of each vitamin a day from fresh foods, why do the pills have to be so much? Isn't this excess dangerous for our body? (clueless) Would our body even absorb all these extra dosage? |
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silly_duck4
Yahoo User
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| Posted: Sun Oct 05, 2008 5:21 pm Post subject: |
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| ive wondered the same thing! it bothers me to see that...and why do some vitamins have like 23% of one thing and 200% of another? if you figure it out--let me know! because i have heard the same thing (about it being bad to get to much, although its only bad to get too many fat soluble ones because the water soluble ones will just flush out of your systme) |
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leslie S
Yahoo User
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| Posted: Sun Oct 05, 2008 5:25 pm Post subject: |
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| Some, a very few, could be dangerous but not at the dosage even the most nutty supplementer takes. Those are the fat soluble ones. None of the C or B's. Any extra is excreted the normal ways.The RDA is the "recommended daily allowance" and is a minor adaption of the MDA "minimum daily allowance" that used to be on supplement bottles. That, and the rda, are meant to show you what you should have in your diet not to get sick. When they mean sick they mean the obvious sickens that helped discover the vitamin originally. For example Vitamin C was originally measured as just enough to prevent rickets. So that small amount is the level given. Most people get enohg Vit C from food to prevent rickets but most people taking Vitamin C whant it for its other properties such as its anti oxcitant properties. |
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