Lilian Cheung, DSC, RD, is a lecturer and director of health promotion and communication at the Harvard School of Public Health's Department of Nutrition. She is the coinvestigator at Harvard Prevention Research Center on Nutrition and Physical Activity and is also the founder and editorial director of The Nutrition Source, www.nutritionsource.org, the Harvard School of Public Health's nutrition web site for consumers, health professionals and journalists. Cheung has been a student of Thich Nhat Hanh since 1997.