Jeffrey S. Bland, Ph.D.
"Is vitamin C a pro-oxidant or an antioxidant?
The answer to this question is not available from
the data or its interpretation in the paper. The results
are contradictory. The failure of the authors to point
out this paradox in the conclusions drawn from their
work is a significant oversight. They focus solely
on the oxidation of adenine, and conclude that a supplement
of 500 mg vitamin C acts as a pro-oxidant," (1)