A young man with lipodystrophy receives treatment after researchers find a hormone in a mouse that helps regulate appetite in humans.

Stream "The Truth About Fat" on the PBS app or online now to learn more: https://to.pbs.org/39GoTsc

Produced and Directed by: Sarah Holt Co-Producer: Jaro Savol Edited by: Sarah Holt, Jaro Savol Animation by: Edgeworx

Digital Producer: Angelica Coleman

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