Episode
"The worthlessness of vitamin D is mildly exaggerated" by dynomight
- Published
- Jun 30, 2026
- Duration seconds
- 2172
- Processing state
not_requested
Actions
POST https://stenobird.com/v1/public/podcasts/lesswrong-curated-popular-5643401/episodes/the-worthlessness-of-vitamin-d-is-mildly-exaggerated-by-dynomight/transcription-requests
Idempotently request low-priority transcript generation for this episode.GET https://stenobird.com/podcast/lesswrong-curated-popular-5643401/the-worthlessness-of-vitamin-d-is-mildly-exaggerated-by-dynomight.md
Read the agent-friendly Markdown representation of this episode resource.
Summary
For a while there, many people thought vitamin D was magical—that it could improve bones, the heart, infections, cancer, heart disease, longevity, even mental health. But among people I respect, opinion is now overwhelmingly that taking vitamin D does nothing unless you're severely deficient. The central argument is that while vitamin D levels are correlated with ~all positive health outcomes, when you actually test vitamin D supplements against placebo in randomized trials, nothing ever hap...