Hannah Dallmann

Hannah Dallmann, Senior Development Officer, works with CSPI’s financial supporters to advance our food safety and advocacy work. Prior to joining CSPI, Hannah was the development director at, senior director of development at Amnesty International USA, and director of development at CARE USA. She served as a Peace Corps Volunteer in Estonia and Georgia and still dreams about the incredible open-air food markets in Tbilisi.

Abby Dilk

Abby Dilk is a Policy Assistant for Special Projects and Biotechnology.  Abby earned a B.S. in Nutrition Science, with minors in biology and chemistry, from Purdue University in 2016. During her undergraduate career, Abby interned at the James Graham Brown Cancer Center and the UC Davis Medical Center, co-authored a nutrition textbook, and published a research paper about sugar-sweetened beverage taxation. Abby is currently earning her Master’s in Public Health Nutrition at The George Washington University.

Caitlin Dow

Caitlin Dow, Senior Nutrition Scientist for Nutrition Action Healthletter, earned her M.S. and Ph.D. in Nutritional Sciences from The University of Arizona. Caitlin completed her Postdoctoral Fellowship in Cardiology at the University of Colorado, Boulder. She has extensive experience as a health blogger and worked with a local news station as the resident nutrition expert in Colorado. She has also volunteered with Cooking Matters, a program focused on teaching nutrition and cooking skills to low-income families. ​

Deane Edelman

Deane Edelman

Project Assistant, Nutrition Action Healthletter


Jennifer Green-Holmes

Jennifer Green-Holmes

Jennifer, Director of Business Operations, brings a wide range of marketing experience including subscription marketing, list acquisition, copy-writing, data analysis and reporting, and budget management. Jennifer comes to CSPI after 16 years of service with Access Intelligence, a worldwide information and marketing company, where she began as an assistant marketing manager and left as a publisher. As publisher, Jennifer managed the marketing, editorial, production and sales teams for the aerospace group and the healthcare product line. Prior to that, Jennifer worked for the Washington Business Journal where her responsibilities included coordinating operations in circulation and marketing.

Michael Jacobson Alt text

Michael Jacobson

Michael F. Jacobson, Ph.D., is a Co-founder and long-time Executive Director of CSPI.  He is now serving as Senior Scientist at CSPI.  Jacobson has written numerous books and reports, including Eater’s Digest: the Consumer’s Fact Book of Food Additives, Nutrition Scoreboard, Salt: the Forgotten Killer, and Liquid Candy: How Soft Drinks are Harming Americans’ Health.  He has also been honored with such awards as the Centers for Disease Control and Prevention’s Hero Award (2010), the American Public Health Association’s David P. Rall award for advocacy in public health (2011), and the Food Marketing Institute’s Esther Peterson Consumer Service Award (1992).  His Ph.D. in microbiology is from the Massachusetts Institute of Technology.

Gregory Jaffe

Gregory Jaffe

Gregory Jaffe is the Director of the Project on Biotechnology for CSPI. Jaffe came to CSPI after serving as a Trial Attorney for the U.S. Department of Justice's Environmental and Natural Resources Division and as Senior Counsel with the U.S. EPA, Air Enforcement Division. He is a recognized international expert on agricultural biotechnology and biosafety, and has published numerous articles and reports on those topics. He has worked on biosafety regulatory issues in the U.S. and throughout the world, including the African countries of Kenya, Uganda, Tanzania, Mali, Ghana, Malawi, South Africa, Burkina Faso, and Nigeria. He was a member of the Secretary of Agriculture's Advisory Committee on Agricultural Biotechnology and 21st Century Agriculture from 2003-2008 and was reappointed to a new term in 2011. He was also a member of FDA’s Veterinary Medicine Advisory Committee from 2004-2008. In addition, he has provided his biosafety expertise for projects involving the International Food Policy Research Institute, the World Bank, and the UNEP-GEF Biosafety Project. Jaffe earned his BA with High Honors from Wesleyan University in Biology and Government and then received a law degree from Harvard Law School.

Joelle Johnson

Joelle Johnson is a Policy Associate at CSPI and works on policy and advocacy efforts that support healthy eating with a specific focus on the retail environment. Prior to joining CSPI she was a program manager for the Food Literacy Project, a farm-based food system education organization in Louisville, KY, and a local food procurement coordinator for DC Central Kitchen. Joelle is a recent graduate of Johns Hopkins School of Public Health where she earned her Master in Public Health with a concentration in food and nutrition.

Maia Kats

Maia Kats is the Litigation Director for the Center for Science in the Public Interest, the leading non-profit advocacy organization on nutrition and public health. As Litigation Director, she prosecutes deceptive advertising class actions in the food and supplements context. Recent litigations and settlements involved vitaminwater (Coke), Plum Organics (Campbell’s), Naked Juice (PepsiCo), and Cheerios Protein (General Mills). Ms. Kats is also lead counsel in a suit against Coca-Cola and the American Beverage Association over marketing on the link between sugar drinks and health harms. Prior to joining CSPI, she was a partner with the class action firm of Sprenger & Lang, PLLC, and earlier, an associate with Hughes Hubbard & Reed. Ms. Kats earned her J.D. from the University of Michigan Law School, where she received multiple honors. She is a frequent speaker on food and class action law.

Lisa Lefferts

Lisa Lefferts

Lisa Y. Lefferts is Senior Scientist at CSPI and focuses primarily on food additives. Prior to CSPI, her work consulting for non-profit organizations took her around the world, conducting trainings, representing Consumers International at Codex Alimentarius, and participating in FAO/WHO expert consultations. She has done extensive work assessing "green" label claims on various products. She received her B.A. from Oberlin College in Biology and Environmental Studies, and a Masters of Science in Public Health from the University of North Carolina at Chapel Hill.