skip to navigation | skip to content
The Mary Frances Picciano Dietary Supplement Research Practicum

2018 Speaker Information

Regan Bailey

Regan Lucas Bailey, Ph.D., M.P.H., R.D., CPH, is an associate professor in the Department of Nutrition Science at Purdue University. Prior to academic life, Dr. Bailey was a nutritional epidemiologist and director of career development and outreach at the Office of Dietary Supplements, Office of Disease Prevention at the National Institutes of Health. The overarching goal of her research program is to prevent or lessen the risk of chronic disease through nutrition. Dr. Bailey’s specific research interests include nutritional epidemiology; B vitamins; dietary assessment methods and measurement error; dietary patterns; dietary supplements; nutrition screening; and nutrition and aging, particularly as it relates to reducing the risk of cognitive impairment and osteoporosis. She has considerable expertise working with the National Health and Nutrition Examination Survey.

Dr. Bailey is a member of the American Society for Nutrition, American Public Health Association, and the Academy of Nutrition and Dietetics. She serves as an advisor to the International Life Sciences Institute-North America both on the Fortification Committee and the Food, Nutrition & Safety Program.

Dr. Bailey received her Ph.D. in nutrition science from The Pennsylvania State University. Dr. Bailey completed an M.P.H. from the Bloomberg School of Public Health at Johns Hopkins University and is certified in public health. Dr. Bailey is a registered dietitian who completed a dietetic internship and M.S. in food and nutrition at the Indiana University of Pennsylvania.

Joe Betz

Joseph M. Betz, Ph.D., is the director of the Analytical Methods and Reference Materials Program in the National Institutes of Health (NIH) Office of Dietary Supplements (ODS). He earned a B.Sc. in biology at Philadelphia College of Pharmacy and Science (PCP&S) in 1976 and an M.Sc. in marine and environmental science at C.W. Post/Long Island University. Mentored by Ara Der Marderosian, Dr. Betz earned a Ph.D. in pharmacognosy at PCP&S. He joined the Division of Natural Products at the U.S. Food and Drug Administration’s (FDA) Center for Food Safety and Applied Nutrition for postdoctoral work under Sam Page. After 2 years, he accepted a full-time job as a research chemist at FDA, where he remained for 12 years. Following his work at FDA, he moved on to become vice president for scientific and technical affairs at the American Herbal Products Association. He joined the NIH ODS as the director of the newly created Analytical Methods and Reference Materials Program in 2002. In that capacity, he oversees several large intra- and extra-governmental initiatives with the goal of providing stakeholders with rugged, validated analytical methods for measuring natural products in research, industrial, and regulatory settings. Dr. Betz is also an adjunct associate professor in the Pharmacology Department at the Georgetown University School of Medicine and in the Department of Cell Biology and Biotechnology at his alma mater in Philadelphia (now called the University of the Sciences).

Dr. Betz has been an active member of the American Society of Pharmacognosy (ASP) since 1979 and has served the Society in a number of ways, including membership on the organizing committee for the 2006 Annual Meeting in Washington, DC, and as past chair of the ASP Job Service Committee. He is a member and fellow of AOAC International and is a member of ACS, the American Association for the Advancement of Science, the Society for Economic Botany, and the Society of Toxicology. He is a reviewer for the Journal of Agricultural and Food Chemistry and a member of the Editorial Board for the Journal of AOAC International. He is also a member of the United States Pharmacopeia’s Expert Committee on Dietary Supplements. Dr. Betz is an internationally recognized scientist, serving on expert scientific advisory committees for the governments of Canada and Hong Kong. He author or co-author of over 85 peer-reviewed publications and book chapters. He is also the recipient of the American Botanical Council’s first Norman R. Farnsworth award for excellence in Botanical Research, the American Herbal Product Association’s Herbal Insight Award for contributions to the Botanical Sciences, AOAC International’s Technical Division on Reference Materials Reference Material Achievement Award, and ASP’s Varro E. Tyler Prize for outstanding scientific contributions to the broad field of dietary supplements, with special emphasis on botanicals. He was recently recognized by the NIH Office of the Director with an Honor Award for his contributions to the establishment and development of the ODS Vitamin D Standardization Program.

Paul Coates

Paul Coates, Ph.D., has directed the Office of Dietary Supplements (ODS) at the National Institutes of Health (NIH) since 1999 in its mission to strengthen knowledge and understanding of dietary supplements. He oversees a range of initiatives and programs that support research and the training of investigators, as well as the development of research tools and information resources; through these, he has established ODS as a strong and authoritative voice for rigorous science in dietary supplements and related areas of nutrition. In 2011, he received the prestigious Conrad A. Elvehjem Award from the American Society for Nutrition for public service in nutrition. He is lead editor of the authoritative Encyclopedia of Dietary Supplements, now in its second edition, and associate editor of the American Journal of Clinical Nutrition. He also currently serves as acting associate director of the NIH Office of Disease Prevention. From 1975 to 1993, prior to his career at NIH, Dr. Coates was on the faculty of the Children’s Hospital of Philadelphia and the University of Pennsylvania School of Medicine as research professor in the Departments of Pediatrics and Biochemistry/Biophysics. His Ph.D. in human genetics was awarded by Queen’s University in Canada, followed by postdoctoral training in the Department of Human Genetics and Biometry at University College London.

Patricia A. Deuster

Patricia A. Deuster, Ph.D., M.P.H., CNS, FACSM, is a professor in the Department of Military and Emergency Medicine and director of the Consortium for Health and Military Performance (CHAMP), a Defense Center of Excellence at the Uniformed Services University of the Health Sciences (USU) School of Medicine. She is also faculty for the neuroscience program. She obtained an A.B. in mathematics and computer science and an M.A. in physical education from the College of William and Mary, a Ph.D. in nutritional sciences and physiology from the University of Maryland, and an M.P.H. with an emphasis in epidemiology from USU.

Dr. Deuster chairs the Department of Defense (DoD) Dietary Supplement Subcommittee, is a member of the DoD Food and Nutrition Subcommittee, and serves on the DoD Human Performance Optimization Health Sciences Advisory Committee. She is one of the leads on the DoD Operational Supplement Safety Initiative.

Dr. Deuster is a fellow of the American College of Sports Medicine and a Certified Nutrition Specialist with over 200 peer-reviewed papers and numerous book chapters and books relating to nutrition, dietary supplements, and physical performance. In addition to peer-reviewed publications, she has developed multiple educational materials related to nutrition, dietary supplements, physical training, human performance, and total force fitness; many are posted on CHAMP’s Human Performance Resource Center and Operation Supplement Safety websites.

Johanna Dwyer

Johanna Dwyer, D.Sc., R.D., attended Cornell University and received her M.S. from the University of Wisconsin and her M.Sc. and D.Sc. from the Harvard School of Public Health. After several years on the faculty at the Harvard School of Public Health, she moved to Tufts University and New England Medical Center (now Tufts Medical Center), where she serves as director of the Frances Stern Nutrition Center at the Medical Center. She is a professor of medicine and community health at Tufts University School of Medicine and also at the Friedman School of Nutrition Science and Policy at Tufts, as well as a senior scientist at the Jean Mayer U.S. Department of Agriculture (USDA) Human Nutrition Research Center on Aging at Tufts. She served as an assistant administrator for human nutrition at the USDA's Agricultural Research Service (2001–2002) and as a senior nutrition scientist at the Office of Dietary Supplements (ODS), National Institutes of Health (2003–2011) while on the Tufts faculty through the interagency personnel acquisition program. She is now a senior nutrition scientist as a contractor at ODS. Dr. Dwyer was a member of the year 2000 Dietary Guidelines Committee and a member of the Food and Nutrition Board, Institute of Medicine, National Academy of Sciences. She is also a member of and served on the Council of the Institute of Medicine (now Health and Medicine Division), National Academy of Sciences.

Dr. Dwyer has written over 500 research and review articles in scientific journals and books. She has been the editor of Nutrition Today, a comprehensive review journal, since 1995. The goal of Nutrition Today is to provide authoritative coverage of developments in nutrition science, nutrition policy, and the cultural aspects of food and nutrition to nutrition practitioners in all sectors. She is visiting faculty at the University of Maryland; external examiner at the Irish National University, Dublin, Ireland; and on the scientific review committee for A*STAR at the University of Singapore, Singapore. Dr. Dwyer’s honors include membership in the National Academy of Medicine, National Academy of Sciences (elected 1998); the W.O. Atwater Award (1995); the Harvard School of Public Health Distinguished Alumnae Award (2004); the C.A. Elvehjem Award of the American Society of Nutrition (2005); fellow, American Society for Parenteral and Enteral Nutrition (2012); and Institute of Food Technologists Trailblazer Award and Lectureship (2014); and the American Society for Nutrition’s Excellence in Nutrition Education Award in 2015. She is past president of both the American Society of Nutrition (formerly the American Institute of Nutrition) and the Society for Nutrition Education, and a fellow of both organizations. She also served in Congress as a Robert Wood Johnson Health Policy Fellow.

Dr. Dwyer’s career has been devoted to expanding the scientific basis for clinical and public health interventions related to diet, especially in obesity, cardiovascular disease, and kidney disease, and to ensuring that public policy fosters such efforts. She agrees with the view of her mentor, Jean Mayer, the late president of Tufts University, that nutrition is not only a discipline but an agenda of problems that must be solved.

Abby Ershow

Abby G. Ershow, Sc.D., R.D., FAHA, has served as a senior nutrition scientist at the National Institutes of Health Office of Dietary Supplements since December 2014. She served as an extramural program director (nutrition) at the National Heart, Lung, and Blood Institute from 1989 to 2014. Prior to that, she was a staff fellow in the Epidemiology and Biostatistics Program of the National Cancer Institute from 1982 to 1989. She completed a detail assignment as a visiting analyst at the U.S. Government Accountability Office in 2007.

Dr. Ershow was awarded an Sc.D. in nutrition, physiology, and biostatistics from the Harvard School of Public Health in 1979. She received a B.A. from Cornell University in biological sciences (physiology) in 1973. In 2006, she earned the Certificate in Public Leadership from the Brookings Institution, Washington, DC. Dr. Ershow also received certificates from the Balanced Scorecard Institute, Cary, NC, in strategic planning (2011) and performance measure development (2013).

A registered and Maryland-licensed dietitian, she is a member of the American Society for Nutrition and the American Chemical Society. In 2007, she was elected a fellow of the American Heart Association. She is the author or co-author of 9 book chapters and over 50 peer-reviewed articles and monographs. She also was a coordinating editor for the only full-length text on conducting controlled diet studies in humans.

Dr. Ershow’s areas of interest include maternal and child health, cardiovascular nutrition, exercise physiology, preventive medicine, vascular biology, public health, nutritional epidemiology, nutrition and developmental disabilities, food chemistry, and metrics for evaluation of program effectiveness. Subjects of recent focus include iodine metabolism and dietary supplement and nutritional interventions for inborn errors of metabolism and mitochondrial disorders. Other longstanding interest areas include heart failure, diabetes, obesity, peripheral arterial disease, chronic kidney disease, and the use of biomedical engineering approaches to address nutrition research issues. She has particular expertise with interagency agreements and other collaborative funding mechanisms.

Bill J. Gurley

Bill J. Gurley, Ph.D., is a professor of pharmaceutical sciences at the University of Arkansas for Medical Sciences (UAMS) College of Pharmacy, director of the UAMS Clinical Pharmacokinetics Research Laboratory, chair of the UAMS Institutional Animal Care and Use Committee, and vice chair of the UAMS Department of Pharmaceutical Sciences. He is a member of the American Association of Pharmaceutical Scientists, American Association of Colleges of Pharmacy, American Society of Clinical Pharmacology and Therapeutics, as well as the U.S. Pharmacopeial Convention’s Expert Panel on Dietary Supplements. He has authored more than 150 peer-reviewed publications, abstracts, and book chapters in the areas of pharmacokinetics, analytical method development, therapeutic drug monitoring, herbal dietary supplements, and herb-drug interactions. His research interests include mechanisms of herb-drug interactions, toxicity of multiple-component herbal dietary supplements, phytochemical modulation of human drug-metabolizing enzymes and drug transport proteins, pharmacokinetics of phytochemcials in humans, and botanical supplement use in special populations. He received his B.S. in chemistry from Tennessee Technological University and his B.S. in pharmacy and Ph.D. in pharmaceutics from the University of Tennessee Health Science Center.

Carol Haggans

Carol Haggans, M.S., R.D., is a scientific and health communications consultant with the Office of Dietary Supplements (ODS) at the National Institutes of Health (NIH). In this role, she handles a variety of health communications activities including writing and updating the ODS dietary supplement fact sheets and the consumer-focused e-newsletter, The Scoop. She also responds to inquiries from consumers, health professionals, and the media about dietary supplements. Ms. Haggans is also a member of the NIH Nutrition Education Subcommittee, a group that reviews nutrition education materials written for the public to ensure consistency with the Dietary Guidelines for Americans.

Before becoming a consultant, Ms. Haggans was a program analyst with ODS from 1999 to 2004. During that time, she coordinated the development and implementation of the Computer Access to Research on Dietary Supplements database of federally funded research on dietary supplements and was involved with the design and maintenance of the ODS website.

Ms. Haggans is a member of the American Society for Nutrition and the Academy of Nutrition and Dietetics. She received an M.S. in nutrition from the University of Minnesota where she conducted clinical research on the effects of flaxseed consumption on estrogen metabolism and breast cancer risk. Prior to that, Ms. Haggans worked in the information technology field as a manufacturing and technical service engineer after receiving a B.S. in mechanical engineering from Rensselaer Polytechnic Institute in New York.

Adam J. Kuszak

Adam J. Kuszak, Ph.D., joined the Office of Dietary Supplements (ODS) in November 2015 as a health policy analyst after first serving ODS as an American Association for the Advancement of Science Science & Technology Policy Fellow in 2014. In supporting the administration and oversight of the Dietary Supplements Analytical Materials and Reference Materials Program, Dr. Kuszak routinely works with dietary supplement research and development stakeholders from academic, government, and industry sectors. In addition, he assists in activities pertaining to mitochondrial disorders as part of the Nutrition and Dietary Supplement Interventions for Inborn Errors of Metabolism Program. Dr. Kuszak earned his Ph.D. in pharmacology at the University of Michigan and completed postdoctoral training at the National Institute of Diabetes and Digestive and Kidney Diseases at the National Institutes of Health.

Joyce Merkel

Joyce Merkel, M.S., R.D., is a science and health communications consultant contractor at the National Institutes of Health Office of Dietary Supplements (ODS), primarily working on dietary supplement literature databases, and in communication and promotion activities for the Office. Prior to coming to ODS, she was a nutrition information specialist for the Food and Nutrition Information Center at the U.S. Department of Agriculture National Agricultural Library, working on the Nutrition.gov website; an assistant professor of nutrition and dietetics at the College of St. Benedict/St. John’s University in Minnesota; a nutrition specialist for the North Dakota State University Extension Service; a Medicare and Medicaid surveyor for the North Dakota State Health Department; and a hospital clinical dietitian. She received her B.S. and M.S. in nutrition from North Dakota State University and performed doctoral work in nutrition at Syracuse University.

Steven M. Mister

Steven Mister, M.A., J.D., has been president & CEO of the Council for Responsible Nutrition (CRN), the leading trade association for the dietary supplement industry, since 2005. Under his leadership, CRN has experienced increased membership, refined its strategic focus, and launched initiatives that center on increasing industry responsibility and consumer education. In addition to his role as president of CRN, he is also president of the CRN Foundation. Among the Foundation’s achievements are the creation of a highly successful consumer wellness education campaign (Life…supplemented), a program with the National Advertising Division of the Council of Better Business Bureaus to review supplement advertising, and a grant to Frost & Sullivan to produce an economic report on health care cost savings from the targeted use of specific supplements.

Prior to joining CRN, Mr. Mister served in several legal and legislative roles for over a decade at the Consumer Healthcare Products Association, most recently as vice president and associate general counsel. Mr. Mister also worked as an attorney in the Washington, DC, law firm of Wiley, Rein & Fielding in general litigation, government ethics, and federal election law practice groups, and had a stint on Capitol Hill as a media relations assistant for former U.S. Senator Charles McC. Mathias, Jr. Mr. Mister holds a law degree from the College of William and Mary, an M.A. in political communication from the University of Maryland, and a B.S. in speech communication from Towson University.

Michelle Rusk

Michelle Rusk, J.D., is a senior staff attorney in the Division of Advertising Practices, Bureau of Consumer Protection at the Federal Trade Commission (FTC). The Division is responsible for regulating national advertising matters, including claims about foods, over-the-counter drugs, dietary supplements, cosmetics, alcohol, tobacco, and environmental products. Ms. Rusk has been responsible for coordination of FTC enforcement activities for food and dietary supplement advertising and involved in various policy matters related to food marketing during her 25-year career at the Commission. She was involved in writing the FTC's 1994 Enforcement Policy Statement on Food Advertising and developed the FTC's 1998 Dietary Supplements: An Advertising Guide for Industry. She was the 1999 recipient of the Commission’s Paul Rand Dixon Award for her work in the dietary supplement area. She served as the FTC’s representative to the Interagency Working Group charged by Congress with developing recommendations for nutritional standards for foods marketed to children and most recently contributed to the FTC’s 2012 report, A Review of Food Marketing to Children and Adolescents. Ms. Rusk joined the FTC from private practice in 1990. She graduated from Harvard University and received her J.D. from the Georgetown University Law Center.

David G. Schardt

David G. Schardt, M.S., is a senior nutritionist at the Center for Science in the Public Interest, a nonprofit consumer advocacy group specializing in food, nutrition, and dietary supplement issues. He has been writing about nutrition for the general public and for professionals for more than 25 years. His articles covering most aspects of food, nutrition, and dietary supplements have appeared in numerous magazines, newspapers, newsletters, college textbooks, and websites. His reports on nutrition and dietary supplements are featured in the monthly Nutrition Action Healthletter, the Nation’s most popular nutrition newsletter. He helped to write and edit the landmark Surgeon General’s Report on Nutrition and Health. His book, Eating Leaner and Lighter, published by Warner Books, was recommended for sensible nutrition by the U.S. Department of Agriculture’s Food and Nutrition Information Center. He has served on panels advising the U.S. Department of Health and Human Services’ Agency for Healthcare Research and Quality, the U.S. Pharmacopeia, and the Association of Official Analytical Chemists on dietary supplement issues. He received his graduate degrees in nutrition and biochemistry from Oregon State University and has graduate study and research experience with Cornell University’s Division of Nutritional Sciences.

Howard D. Sesso

Howard D. Sesso, Sc.D., M.P.H., FAHA, is an associate epidemiologist at the Divisions of Preventive Medicine and Aging at Brigham and Women’s Hospital (BWH), an associate professor of medicine at Harvard Medical School, and an associate professor of epidemiology at the Harvard T.H. Chan School of Public Health in Boston, Massachusetts. He received his B.A. in human biology from Stanford University, an M.P.H. in epidemiology from The George Washington University, and an Sc.D. in epidemiology from the Harvard T.H. Chan School of Public Health. Dr. Sesso specializes in the epidemiology and prevention of cardiovascular disease (CVD), including hypertension and obesity as major risk factors, as well as cancer. His research focuses on the role of vitamin and mineral supplements, along with nutritional biomarkers, on the prevention of chronic disease. Dr. Sesso is director of nutrition research and co-director of hypertension research at the Division of Preventive Medicine at BWH.

Dr. Sesso is also an expert in the design, methodology, and conduct of epidemiologic studies and randomized clinical trials. He led the Physicians’ Health Study II, a recently completed trial that tested a multivitamin, vitamin E, and vitamin C supplements on cardiovascular disease, cancer, eye disease, and other chronic diseases in 14,641 men with more than a decade of treatment and follow-up. Dr. Sesso is also testing vitamin D and fish oil supplements on 24-hour ambulatory blood pressure and risk of developing hypertension in an ancillary study of the VITamin D and OmegA-3 TriaL (VITAL) trial. Dr. Sesso is co-principal investigator of the recently initiated COcoa Supplement and Multivitamins Outcomes Study (COSMOS), a randomized, 2x2 factorial trial testing cocoa flavanol and multivitamin supplements in the prevention of CVD and cancer in 18,000 women and men with 4 years of treatment and follow-up. Dr. Sesso has published more than 200 papers to date and enjoys teaching at Harvard Medical School and the Harvard T.H. Chan School of Public Health, as well as mentoring new investigators.

Barbara C. Sorkin

Barbara C. Sorkin, Ph.D., is the director of the National Institutes of Health (NIH) Centers for Advancing Research on Botanicals and Other Natural Products Program, an effort to advance the scientific base of knowledge about botanical safety, efficacy, and biological activities of botanicals and other natural products relevant to dietary supplements. Dr. Sorkin administered extramural research efforts in the areas of healthy aging, cancer, and sleep at the NIH National Center for Complementary and Alternative Medicine (NCCAM) for 9 years before moving to the Office of Dietary Supplments. While at NCCAM she also coordinated programs to enhance clinical and translational research on complementary and alternative medicine. Dr. Sorkin received her B.S. and M.S. from the Molecular Biophysics and Biochemistry Department at Yale University, and her Ph.D. from the Department of Developmental and Molecular Biology at Rockefeller University. Prior to joining NIH, she was a faculty member at the Forsyth Institute in Boston, Massachusetts, and at the Scripps Research Institute in La Jolla, California.

Paul R. Thomas

Paul R. Thomas, Ed.D., R.D.N., is a scientific consultant at the Office of Dietary Supplements (ODS). In that capacity he contributes to various projects with most of the ODS scientific staff. Dr. Thomas works primarily in ODS communications, where he prepares dietary supplement fact sheets and other educational materials and interacts with the media. Dr. Thomas also manages the Federal Working Group on Dietary Supplements, which serves as a means of communication between ODS and its Federal partners to co-fund research, expand opportunities for research-investigator training, and strengthen collaborative efforts involving dietary supplement research, education, and communication. He is a registered dietitian nutritionist and a member of the American Society for Nutrition. Previous positions include project director at the Food and Nutrition Board of the Institute of Medicine, fellow and research assistant professor in the Center for Food and Nutrition Policy at Georgetown University, expert consultant to the U.S. Department of Agriculture, senior staff scientist with the Life Sciences Research Office, and founder of The Dietary Supplement newsletter. He received his Ed.D. in nutrition from Columbia University’s Teachers College.