HackerTube.dev

Vitamin D and Immunity, Lots of Evidence

Dr. John Campbell · 711.2K views · 2020-04-15 · 30:26

Open on YouTube ↗

If playback is restricted in your region, try opening the original video. Use Mark watched to add it to your marked videos.

Overview

Dr. John Campbell reviews studies on vitamin D deficiency and immunity, including links to influenza and COVID-19, with Public Health England advice. He walks through the sources he cites.

On Hacker News

Cited in COVID-era threads as a physician's evidence-based argument that vitamin D is cheap, low-risk and worth considering.

Recommended by 2 HN people across 2 months · HN mentions 2020–2021

Topics

Search by tags

What people said

throwaway829 · 2020-05 · Recommendation

I doubt anyone here thinks it's some kind of magic, but if you've been following the pandemic from the beginning, you've probably seen these two doctors who both recommend vitamin D: - Dr. Seheult's: [LINK] - Dr John Campbell: [VIDEO] It's cheap and has minimal downside. Pre-covid it was already known to "reduce symptoms of colds or influenza"[0]. [0] Benefits of Vitamin D Supplementation - Journal of American Physicians and Surgeons [LINK]

Read the original HN comment ↗
Zenst · 2020-04 · Recommendation

Sure it's a correlation, in much the same way SAD syndrome more prevalent the further North you go. But some things may well have better papers or links, I was just pointing out what seems to be logical - however - watch this please: [VIDEO] A Doctor who has been doing a fair and most excellent overview with a critical mind upon this whole COVID-19 from early on and focused upon evidence. He covers things in a way that may hold more gravitas to that aspect. One of the many useful reference links from that video that I think covers all this fair and square. [LINK]

Read the original HN comment ↗
andruby · 2021-11 · Reference

He's actually been talking about Vitamin D since April 2020 [0] and discussed the encouraging first clinical trial in September 2020 [1]. There are plenty of published studies on Vitamin D and its effects on Covid. I don't understand why healthcare guidelines don't mention or promote it more. The only reason I've come up with so far is that the pharmaceutical companies don't focus on it since there is no money to be made. Vit. D is basically free (€4 for a year's supply of 20 mcg/day). Without the push and lobbying from Pharma, I guess it doesn't get enough attention? [0] [VIDEO] [1] [LINK]

Read the original HN comment ↗

Sources

Video by Dr. John Campbell, played through YouTube.

Data and selection notes

HN summaries and labels may contain AI errors. HN dates refer to discussions, not video publication.

HN Library: HackerTube export (2026-10-31) and open-index/hacker-news. Upstream summaries and classifications may contain AI errors.

Views, duration and playback status refresh separately from the published catalog. When an update fails, existing data remains visible.

Selection checks
  • SaaS & AI candidates: Topic keywords do not match
  • Editor-approved picks: Editorial review is required

Rule matches identify candidates. They do not guarantee video quality or financial results.

About the library and its sources