Skip to content

Vitamin D and Multiple Sclerosis: Separating Evidence from Expectation

June 18, 2026 · 31 min

Show notes

Vitamin D and multiple sclerosis have been linked for decades, but how strong is the evidence – and what does it mean for clinical practice?

In this episode of the ECTRIMS Podcast, host Brett Drummond speaks with Prof. Eric Thouvenot from University Hospital of Nimes and Dr. Deborah Mason from Christchurch Hospital about the evolving science behind vitamin D and MS.

Together, they explore:

  • Why vitamin D deficiency is associated with increased MS risk
  • The influence of latitude, sunlight exposure and genetics
  • How vitamin D affects immune regulation and inflammation
  • Findings from recent vitamin D supplementation trials

As researchers continue to investigate vitamin D's role in MS, this episode provides a balanced look at what we know, what remains uncertain, and what it means for patient care.

____________________________

This ECTRIMS podcast episode is supported by an educational grant from Alexion, AstraZeneca Rare Diseases. Bristol Myers Squibb, Roche, Sanofi, and UCB. Educational grant providers have no input into the podcast series content.

All episodes of The ECTRIMS Podcast

Settings

Display

Language

Decides which stations you see first on the home page.

History

Recently played stations and episodes and your latest searches are only stored in this browser.

Notifications

A short notice when a podcast you follow has a new episode. Turn off single podcasts with the bell on their page.

Account

Save favorites – in the app and on the website.

Keyboard shortcuts

/
Open search
Space
Play or pause
← →
In the player: back 15 s, forward 30 s (episodes) · in a row: next tile
↑ ↓
In a row: target within the tile
Home / End
In a row: first or last tile
Esc
Close window or menu
?
This overview
Now playing

Go to station page

Play next

    Add episodes with “Play next” – they play after the current episode.