"Although the predominance of expert opinion some years ago were that extra vitamins are expensive and unnecessary, there has been some change in thinking. The essential concept is as follows. The published RDAs for vitamins provide protection against acute deficiency diseases, e.g. scurvy, pellagra, beriberi, and pernicious anemia. Yet it is possible that higher intakes may protect against chronic diseases such as coronary heart disease and cancer. Various plausible hypotheses have been developed whereby long-term protection might occur. These hypotheses have generated intensified research into the vitamin field." Read the full article here.
-Southwestern Medical Center website
I think ever so slowly more health professionals are realizing the potential benefits of antioxidant supplementation.