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.