Biochemist who specializes in the effects of nutrition on long-term health. He is the Jacob Gould Schurman Professor Emeritus of Nutritional Biochemistry at Cornell University, and the author of over 300 research papers. He was one of the lead scientists in the 1980s of the China-Oxford Cornell study on diet and disease (known as the China Project), set up in 1983 by Cornell University, the University of Oxford, and the Chinese Academy of Preventive Medicine to explore the relationship between nutrition and cancer, heart and metabolic diseases. The study was described by The New York Times as "the Grand Prix of epidemiology."