Jessica J. Johnson is a Ph.D. candidate in Biological Sciences at the University of Alaska Fairbanks. She achieved a B.S. in Biology at Tufts University in 2011 and an M.S. in Oceanography & Coastal Sciences at Louisiana State University in 2017. Her graduate research has focused on the use of natural abundance stable isotope ratios as dietary biomarkers for both ecological and nutritional applications. She is currently interested in how isotopic biomarkers of added sugar and animal protein can be used to calibrate self-reported intakes in large cohort studies. She is a student member of the American Society for Nutrition.