She then earned her master's degree in nutritional science at Columbia University while preparing her U.S. medical school applications.
Nana Keum graduated from Harvard's TH Chan School of Public Health with a dual-doctorate in nutrition and epidemiology in 2015.
She is currently a postdoctoral fellow at the TH Chan School of Public Health under the mentorship of Edward Giovannucci.
She has published numerous peer-reviewed research papers and specializes in meta-analyses.
She is the author of the Korean language books 나나 너나 할 수 있다 (Everyone Can Do It), 공부일기 (Study Diary), 나나의 네버엔딩 스토리 (Nana's Never Ending Story).