Chad Nicholls

Chad Nicholls, known as “The Diet Doc”, rose to prominence in bodybuilding contest preparation during the 1990s. His career is linked to the development of nutrition planning and conditioning in professional bodybuilding.

He worked with Kim Chizevsky and Ronnie Coleman and, in a later generation, Big Ramy. These relationships describe his career history, not necessarily current partnerships.

Known as The Diet Doc, Chad Nicholls is an American contest-prep coach. His history includes Ronnie Coleman’s eight Mr. Olympia titles, Kim Chizevsky’s four Ms. Olympia wins and Big Ramy’s 2020 and 2021 titles. He also worked with Flex Wheeler and Nasser El Sonbaty.