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Dear Dr. Stoll,
a physician and a apothecaries told me, that high doses of Vitamin C can cause problems with the kidneys. I also read your statement, that this is a "AMA's old wives tale".
Could you explain, why so many physicians have this opinion and why they are wrong?
Please forgive, that I ask this question, but these different opinions made me very insecure.
In Reply to: Vitamin C and the kidneys posted by Felix on January 31, 2000 at 07:31:45:
See link below.
I'm Not saying that what they say on their page is totally right or wrong, but they say: Mega-doses of vitamin C increase chance of formation of drug crystals in urine if combines with aminosalicylic acid (PAS for tuberculosis).
However, they lose some credibility with me when they say "Signs of toxicity: Flushed face, frequent urination, mild diarrhea, nausea."
My understanding is that the body self-limits its intake of Vitamin C by not absorbing it in the intestine beyond some point. That's what causes the mild diarrhea. In fact, many folks use this to determine how much Vitamin C they can take in their current health circumstance. They take it to bowel tolerance (diarrhea), then they back the dose off a little. As they get better, their bowel tolerance level will decrease, and they can decrease their Vitamin C dose accordingly.
Hope this helps!
RHJ++
In Reply to: Re: A Reference Page on Vitamin C posted by Robot Responder on January 31, 2000 at 08:43:33:
Thank you, "Robot Responder" and "Rocket Healer" for your answer.
I understand the fact with the absorbing vitamin C in the intestine and the mild diarrhea etc. but what happens, if I get it IV ? How can the body self-limit its intake of Vitamin C there?
In Reply to: nice Picture! posted by Felix on January 31, 2000 at 09:37:48:
I imagine that Dr. Stoll will have something to say on that one. I certainly cannot answer it, and that's not the sort of thing you are likely to find in someone's Vitamin Supplement Encyclopedia.
In Reply to: Vitamin C and the kidneys posted by Felix on January 31, 2000 at 07:31:45:
Hi, Felix.
Listen to Robot Responder.
MY suggestion would be to insist that any pharmacist, or poorly informed physician, produce for you any case of kidney stones caused by vitamin C. Even any research that showed this mechanism would be satisfactory to me even if there never was a documented case of this happening.
Let them put their money where their mouth is and I will listen. The chances are that they will just get angry that you had the temerity to doubt their word.
Over the years I have come to believe that this "old doctors' tale" is so self serving that it will never die out on its own.
The same thing is told about Chelation Therapy (kidney damage). However, there has never been a case of damage to the kidneys from Chelation--even after many millions of chelations have been done world wide. As a matter of fact, Dr Cheraskin, DMD, MD did a retrospective study to try to put this "old doctors' tale" to rest. His research showed IMPROVEMENT of kidney function instead of ANY decrease in function. Did this change the minds of those who didn't want their minds changed? Of course not.
You are going to have to do the research of the literature yourself and make up your own mind. When you have, I hope you will share what you decide with the rest of us.
Good question!!!!
Walt
In Reply to: nice Picture! posted by Felix on January 31, 2000 at 09:37:48:
Good question, Felix!
I do not know the answer either. I can say this, however: There has never been a case of kidney stones or kidney damage from 100 grams of vitamin C/day, intravenously, and many thousands of people have been treated that way for a number of years now (Mononucleosis, Chronic EBV, Chronic Hepatitis B or C, Shingles, Cancer, etc.) Surely, if this was going to be a problem, it would have been seen by now.
You could call one of the pioneers in this area and see what he says. Then let us know what you learn. He is Robert Cathcart, MD, in Los Altos, CA, (415) 949-2822.
I appreciate your interest in following this up.
Walt
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