skip to main content



Sir John Walker FRS, FMedSci, Nobel Prize Winner Member

Professor John Walker received his B.A. (chemistry) in 1964 from St. Catherine’s College, Oxford, and his D.Phil (Biochemistry) in 1969 from the University of Oxford. In 1997, Walker and biochemist Paul D. Boyer, Ph. D., won the Nobel Prize in Chemistry for their elucidation of the enzymatic mechanism underlying the synthesis of adenosine triphosphate (ATP). Walker was knighted in 1999 for his contributions to molecular biology, and in 2012 he was awarded the Copley Medal—Royal Society’s highest honor—for his contribution to the field of biochemistry and molecular biology.

“I’m delighted to join the groundbreaking work that ChromaDex has accomplished thus far with nicotinamide riboside and NAD, as well as helping to deepen our understanding of its role in mitochondrial health.”