Posted by Larry Hoover on November 24, 2003, at 8:33:53
In reply to Magnesium citrate .., posted by slinky on November 23, 2003, at 21:37:57
> It ain't as effective for me as magnesuim oxide__
Everybody's different. It's usually the other way around (unless there is a confusion in the amount of elemental magnesium contained in doses of each product).
> I'm taking a lot of vitamins...probably too much.
It's hard to do that.
> Which ones are toxic/bad in large amounts?
Generally, the fat solubles. Vitamin A and D are common culprits. That's why cod liver oil is not the best source of omega-3 fatty acids....too much A and D.
> Are any of B vitamins?
Yes, but...
Here's an example of what happens when you behave like an idiot. Gram quantities, for years? Give me a break.
Funct Neurol. 1993 Nov-Dec;8(6):429-32.
Sensory and motor neuropathy caused by excessive ingestion of vitamin B6: a case report.
Morra M, Philipszoon HD, D'Andrea G, Cananzi AR, L'Erario R, Milone FF.
Department of Neurology, San Bortolo Hospital U.L.SS. n. 8, Vicenza, Italy.
We describe a patient who developed a severe sensory and a mild motor neuropathy. This syndrome was due to massive and prolonged ingestion of vitamin B6 (10 g daily for 5 years). To our knowledge this is the first published case of motor neuropathy caused by chronic abuse of vitamin B6.
Vitamin B6 neuropathy is reversible. All you do is stop taking B6 if it develops. There are reports of B6 neuropathy at much lower doses than the above case (in the 100 mg-200 mg/day range, but again, over extended periods of time), but that is rare, and there are many other factors which mitigate the risk. One simple factor is to never just take B6. Combine it with other B's, and the risk is virtually zero. That's one of the reasons why they sell B's in a blend, as B-complex.
B-vitamins, with the exception of B-12, are not stored in the body. They are rather quickly eliminated by the kidneys. It takes prolonged and outrageous overdose of B-vitamins for harm to develop.
> I should search the net but i'm in sloth mode and tired.
Rather than the net, you can search Lar. My pleasure.
Hypervitaminosis, the medical term for toxicity from vitamin overdose, is really a rare thing. Despite that, it receives massive publicity, almost propaganda, from standard medical types. These are the same people who tell you that you get all your nutritional needs met with normal diet. That is false, by the way. Vitamins as a *treatment* would fall under an exception to that definition, in any case.
Lar
poster:Larry Hoover
thread:283013
URL: http://www.dr-bob.org/babble/alter/20031122/msgs/283142.html