B12 |
[Jan. 24th, 2010|11:46 pm]
Kelly J. Cooper
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Fun Fact: Cereal, that which we have all long mocked as adjacent to this nutritious breakfast (even when fortified with vitamins and minerals), has the highest oral bioavailability of B12 next to beef liver (eauggh). |
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Hmmm, maybe I will go out and buy me a box of Cheerios!
![[User Picture]](https://l-userpic.livejournal.com/64714173/576298) | From: ceo 2010-01-25 12:28 pm (UTC)
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huh huh huh... she said "oral bioavailability"...
Does that include taking a B12-supplement as an option? (By which I mean, I know some vitamins are just better accessed through food than through supplements, so I'm wondering if the oral bioavailability of B12 is being compared to its availability in other foods only for this study, or also to its o-ba when taken alone or with other supplements.)
![[User Picture]](https://l-userpic.livejournal.com/81924416/575499) | From: kjc 2010-01-25 01:30 pm (UTC)
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Yep. B-12 supplements have extremely poor oral bioavailability.
Which is why, if you are critically low in B-12, you get intramuscular shots of the stuff.
hmmm... interesting. My doc sez I'm anemic, but not low in iron-- that my red blood cells are unusually large, which usually points to a B12 deficiency. I told her "but I take a B12 every day," and she said, well let's be sure to get you back in here to test your B12 levels." so... um, yeah, maybe it would be a good idea for me to prioritize actually doing that.
iiinteresting... thanks!
![[User Picture]](https://l-userpic.livejournal.com/81924416/575499) | From: kjc 2010-01-25 02:04 pm (UTC)
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Doesn't it depend on the cereal?
![[User Picture]](https://l-userpic.livejournal.com/81924416/575499) | From: kjc 2010-01-26 02:58 am (UTC)
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Sure, some cereals are likely to have more B-12 than others, but I doubt it matters much. Most of them are fortified, even the super sugary ones, with the same plant-based B-12 stuff. Clearly, reading the nutrition information is a better guide than I am, but most of the variation between cereals seems to be in the fiber content and calorie count.
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