Elizabeth M. Whelan (/ˈhwiːlən/; December 4, 1943 – September 11, 2014) was an American epidemiologist best known for promoting science that was favorable to industry and for challenging government regulations of consumer products, food, and pharmaceuticals industries that arose from what she said was "junk science." In 1978, she founded the American Council on Science and Health (ACSH) to provide a formal foundation for her work. She also wrote, or co-wrote, more than 20 books and over 300 articles in scientific journals and lay publications.