Featuring Alyson Fox, MD, MSCEReviewed by Patricia Pinto-Garcia, MD, MPH | September 28, 2025

What was once known as non-alcoholic fatty liver disease now has a new title: metabolic dysfunction-associated steatotic liver disease, or MASLD.

MASLD can get worse and turn into metabolic dysfunction-associated steatohepatitis, or MASH. In this video, learn what MASH is, according to Alyson Fox, MD, MSCE, Transplant Hepatologist at Columbia University’s Irving Medical Center.

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Written by:

Marisa Taylor Karas

Marisa Taylor Karas is a freelance journalist based in Brooklyn who has covered health, gender, and technology for 15 years. She previously worked at The Wall Street Journal, The Guardian, and Al Jazeera America, among other publications, and also served as managing editor of the Mellon Foundation in New York City.

Reviewed by:

Patricia Pinto-Garcia, MD, MPH

Patricia Pinto-Garcia, MD, MPH, is a medical editor at GoodRx. She is a licensed, board-certified pediatrician with more than a decade of experience in academic medicine.