Young was a principal organizer of amino acid Workshops sponsored by the International Council of Amino Acid Science and was the Chairman of the Council's Scientific Advisory Board.
's Clinical Research Center during the 1980s and held posts at Harvard Medical School and the Boston Shriners Hospital.
He was a former president of the American Institute of Nutrition and, in 1990, was elected to the National Academy of Sciences.
[citation needed] In 2001, Young was named to the board of directors of Nestle corporation.
Additional appointments in Boston at the time of his death included lecturer in surgery, Harvard University, and senior visiting scientist, U.S. Department of Agriculture Human Center on Aging, Tufts University, 1988-2004.