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FAMILY DOCTOR: High vitamin C doses may harm more than help
Thursday, May 17, 2007
PETER GOTT, M.D.
UNITED MEDIA
Q: I am a 78-year-old male who has been taking a daily dose of 400 IU of vitamin C for so long that I have forgotten why I take it.
My wife's doctor recently told her to stop taking vitamin C, for it does nothing for her, and recent studies indicate that it could contribute to a heart problem. She is 77 years old and we are both in relatively good health.
I would appreciate your opinion.
A: The endorsement of high-dose vitamin C by Dr. Linus Pauling years ago has not worked out. Although the vitamin is vital for normal metabolism, huge doses do not protect against colds, cancer and other ailments; in fact, such megadoses can cause heart problems.
I recommend that you continue vitamin C therapy at a lesser dosage, such as 200 IU per day, a level that will not harm you. Your wife's doctor might suggest the same compromise if she wishes to continue the vitamin supplement.
Lillyblossom