Richard David Feinman (born 1940) is a professor of biochemistry and medical researcher at State University of New York Health Science Center at Brooklyn, better known as SUNY Downstate Medical Center, who studies nutrition and metabolism.

[1] His current area of research is the area of diet composition and energy balance.

He is a director of the Metabolism Society and a former co-Editor-in-Chief of the Open Access online medical journal, Nutrition & Metabolism.

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