John Cannell

John Jacob Cannell, M.D. (born June 21, 1948, Washington, D.C.) is an American doctor. An anti-smoking activist, Cannell was featured in the New York Times in the 1980s for turning away smokers from his clinic in West Virginia. Cannell founded a nonprofit group to address perceived problems with educational testing. Cannell has described several hypotheses regarding the health benefits of Vitamin D and is the founder of the Vitamin D Council.

John Cannell

John Jacob Cannell, M.D. (born June 21, 1948, Washington, D.C.) is an American doctor. An anti-smoking activist, Cannell was featured in the New York Times in the 1980s for turning away smokers from his clinic in West Virginia. Cannell founded a nonprofit group to address perceived problems with educational testing. Cannell has described several hypotheses regarding the health benefits of Vitamin D and is the founder of the Vitamin D Council.