Reader asks for facts on water soluble vitamins and safety
Dear Dr Lamb discusses water soluble vitamins and FDA moves to require prescription for high dose tablets. Vitamin C in large doses may cause diarrhea and kidney stones. caution advised. The column cites Linus Pauling, Medical Letter, and FDA actions as context for avoiding self treatment with mega doses. Also notes zinc sulfate treatment for taste and smell issues and reinforced tire chains claim by the National Safety Council.