There's no known vitamin K toxicity in humans, except for vitamin K3. Phytonadione, the additive in Kashi and your average multivitamin, as well as the ebil prescription injection (which is used as an antidote to warfarin/Coumadin overdose), is vitamin K1. It's the only available form of vitamin K in the US.
It's true, pets are smaller, but honestly, the whole "OMG SYNTHETICS! EBIL!!" thing drives me up a tree. God bless the person who figured out how to synthesize levothyroxine, because I'll be damned if I'm going to take a pill derived from dessicated pig thyroid. It's NATURAL! Therefore it's BETTER! No, it isn't. See also insulin. I still don't understand why people use a pill derived from pregnant mare urine rather than nice, clean, synthetic estrogens. (Also, getting the pregnant mare urine in quantities sufficient to make enough Premarin for every menopausal woman in the US/world requires some pretty nasty animal cruelty; they don't let the horses drink a lot of water so their urine is more concentrated.)
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Date: 2011-09-13 07:52 pm (UTC)From:It's true, pets are smaller, but honestly, the whole "OMG SYNTHETICS! EBIL!!" thing drives me up a tree. God bless the person who figured out how to synthesize levothyroxine, because I'll be damned if I'm going to take a pill derived from dessicated pig thyroid. It's NATURAL! Therefore it's BETTER! No, it isn't. See also insulin. I still don't understand why people use a pill derived from pregnant mare urine rather than nice, clean, synthetic estrogens. (Also, getting the pregnant mare urine in quantities sufficient to make enough Premarin for every menopausal woman in the US/world requires some pretty nasty animal cruelty; they don't let the horses drink a lot of water so their urine is more concentrated.)