Fat has gotten a bad wrap, but one expert is determined to educate people on its importance.

Fat cells are responsible for storing energy, insulating, protecting delicate tissues and producing the appetite hormone leptin.

Professor Stephen O’Rahilly argues the fat cell is not to blame for the harms of obesity. Instead, the harms come when the fat cell becomes overwhelmed.

Professor Sir Stephen O’Rahilly delivered the Charles Perkins Centre capstone the Nicholas Catchlove Lecture 2025.

Guest/s

• Sir Stephen O'Rahilly, professor of clinical biochemistry and medicine at the University of Cambridge