What's Up Docs?, What's Up Docs?, How should we think about cholesterol?

What's Up Docs?

What's Up Docs?

How should we think about cholesterol?

7 April 2026

29 minutes

Available for over a year

Welcome to What’s Up Docs?, the podcast where doctors and identical twins Chris and Xand van Tulleken untangle the confusion around every aspect of our health and wellbeing.

In this episode, they take on one of nutrition’s most misunderstood topics: fat. What is it, and why does our body need it? At what point does something normal and essential become something we worry about? What do cholesterol blood tests actually measure, and how well do they predict disease?

Chris and Xand also explore the relationship between diet and cholesterol, asking how much influence what we eat really has, whether certain fats deserve their bad reputation, and what gets lost when we focus on single nutrients instead of overall dietary patterns.

They’re joined by Nita Forouhi, Professor of Population Health and Nutrition at the University of Cambridge, to help separate evidence from hype and offer a clearer way to think about fat, cholesterol, and healthy eating.

If you want to get in touch, you can email us at whatsupdocs@bbc.co.uk or WhatsApp us on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken

Guest: Professor Nita Forouhi

Producer: Faye Lyons-White

Executive Producer: Rami Tzabar

Editor: Jo Rowntree

Researcher: Grace Revill

Tech Lead: Reuben Huxtable

Social Media: Leon Gower

Digital Lead: Richard Berry

Composer: Phoebe McFarlane

Sound Design: Olga Reed

At the BBC:

Assistant Commissioner: Greg Smith

Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4