Edward J. Calabrese is an American toxicologist and professor in the department of environmental health sciences at the University of Massachusetts Amherst.
[1] Calabrese began working at the University of Massachusetts Amherst in 1976.
[3][4] However, he is best known for his research into, and championing of, hormesis,[3][4][5] which he has called "the fundamental dose-response model".
[6] In 2003, Calabrese told the Wall Street Journal that the view that there is no threshold of dose below which substances have no adverse effects, as has been stated in scientific textbooks, was "an error of historic proportions.
[3] The class later discovered that they had accidentally used a highly diluted form of Phosfon.