Chris and Xand continue their conversation with Professor Stella Volpe, head of the department of Human Nutrition, Foods, and Exercise at Virginia Polytechnic Institute and State University in the United States.

They talk to Stella about her work as a sports nutritionist, specialising in diabetes and obesity, about whether athletes need to think about magnesium differently, and the relationship between magnesium and diabetes.

If you’d like to share your thoughts on this or any other topic covered on the podcast, you email us at whatsupdocs@bbc.co.uk or Whatsapp on 08000 665 123.

Presenters: Drs Chris and Xand van Tulleken
Guest: Professor Stella Volpe.
Producer: Jo Rowntree and Emily Bird
Executive Producer: Rami Tzabar
Editor: Kirsten Lass
Assistant Producer: Maia Miller-Lewis
Researcher: Grace Revill
Tech Lead: Reuben Huxtable
Social Media: Leon Gower
Digital Lead: Richard Berry
Composer: Phoebe McFarlane
Sound Design: Melvin Rickarby

At the BBC:
Assistant Commissioner: Greg Smith
Commissioning Editor: Rhian Roberts

A Loftus Media production for BBC Radio 4.