Peter Attia (born March 19, 1973)[1] is a Canadian-American author, physician, and researcher known for his work in longevity medicine.

[6] Attia also created the blog "The Eating Academy" (later "War on Insulin" and now peterattiamd.com) that mostly focuses on topics related to nutrition, physical activity, and longevity.

Subsequently, he launched the podcast "The Peter Attia Drive", in which he interviews various experts each week, covering topics such as longevity, metabolic health, and medical research.

He had a central role in Limitless, a six-part documentary for National Geographic and Disney+ starring Chris Hemsworth and directed by Darren Aronofsky.

In episode 5, Attia told Hemsworth that he carried the high-risk APOE4 allele, which places him at elevated risk of neurodegenerative aging of the Alzheimer's type.