Found this on my travels

Found this little extract in the article from the link I've provided:-



Also, the stuff the manufacturers add to the C to make it a pill may disagree with you. Try different types if this is the case. Some people are very sensitive to the acidity. Calcium ascorbate tablets are available for you if the ascorbic acid is troubling. Vitamin C powder is what I take because I take a lot (big surprise) and it is very easy to take 8-10 grams at one time this way.

http://www.cforyourself.com/Overview/Primer/What_C_Does/why_take_c.html#howmu...

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