Lisa Mauer, Purdue University (IMAGE) Purdue University Caption Lisa Mauer, a Purdue associate professor of food science, has shown that subjecting certain products, such as vitamin C, to humidity can chemically change their compositions, eliminating the health benefits associated with those products Credit Purdue Agricultural Communication photo/Tom Campbell) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.