I cannot believe the Deseret News allows Amy Donaldson to pose as some sort of expert on nutrition (Sept. 11, Page C1). Scientific research affirms that megadoses of vitamin C do nothing to cure colds, prevent headaches or lengthen your life. And, yes, you can overdose on vitamin C if you take enough of it, just like anything else. The sources she quotes in her article are health food store purveyors who exist to sell the public their wares.

Marcia Whitaker, RD, CD