I have a question about this episode Dr. Peter Attia: Improve Vitality, Emotional & Physical Health & Lifespan | Huberman Lab Podcast and this Cholesterol Management Insights How does Ezetimibe specifically work?

Ezetimibe works by blocking cholesterol absorption in the intestines. Specifically, it targets the Niemann-Pick C1-like 1 (NPC1L1) transporter in the enterocytes, which are the cells lining the gut that absorb dietary cholesterol. When Ezetimibe inhibits this transporter, it prevents cholesterol from entering the bloodstream from the intestine 1.

Here's a breakdown of Ezetimibe's function:

• Location: It acts in the small intestine at the intestinal epithelial cells (enterocytes).
• Mechanism:
  • Ezetimibe blocks the NPC1L1 transporter.
  • This transporter's role is to facilitate the absorption of cholesterol; without it, less cholesterol enters the bloodstream from dietary sources.
• Result: By reducing the amount of cholesterol absorbed, Ezetimibe helps lower overall cholesterol levels in the body.

It operates alongside medications like statins but primarily focuses on preventing cholesterol absorption rather than affecting cholesterol production directly 1.