HackerTubewatch
Surprise me
Frame from Vitamin D and immunity Plays via YouTube's privacy-enhanced embed

Vitamin D and immunity

3 videos recommended on HN
YouTube
1 HN user recommended this explainer1 month2020 score 1
Years with an HN recommendation, 2007–2026

Commenters point to Campbell's channel as a low-tech, content-dense source of pandemic updates and early discussion of vitamin D.

Dr. John Campbell reviews studies on vitamin D and immunity, including research on respiratory infections, during the early COVID-19 period.

“Anyone that wants to stay up to date with the virus should follow this channel” (HN, 2020)

1 recommendations · 4 citations · Explainers · news from the time

5 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@gnur Mar 2020 Recommends
on HN thread Resources For Novel Coronavirus Covid-19
Read more
Anyone that wants to stay up to date with the virus should follow this channel [0] It's from the semi retired Dr. John Campbell, his videos are low tech but high content. I've come to realize it is all our responsibility to make sure the health care professionals can handle this. If we assume this is going to be as big as some predict it will be, we basically cannot escape it, but it is possible to lengthen the time in which most infections well arise, lowering the peak and curve, which will in turn greatly reduce the peak load on healthcare professionals. A 1000 admissions a day might be impossible to handle, but 100 admissions stretched out over 10 days is much more manageable. This is something everyone can help with. Also, take a lot of Vitamin D, it helps with handling the Covid19 and other respiratory tract infections (both viral and bacterial). [1] [0] [link] [1] [this video]
Dr. Campbell's low-tech, high-content updates and vitamin D advice.

Citations, criticism and jokes

@wcarss Apr 2020 Cites it
on HN thread Vitamin D Insufficiency is Prevalent in Severe Covid-19
This systematic meta-analysis paper[1] may be more convincing. The popular youtube COVID-commentating Dr. John Campbell did a review of it about a month ago[2] and has some good comments on the meaningful statistical power and experiment design. The overall takeaway is this: in people with Vitamin D deficiency (which is very, very common), continuous daily supplementation can lead to up to a 70% reduction in contracted viral respiratory infections. It has a smaller effect the less deficient you are, and is not associated with any adverse effects. 1 - [link] 2 - [this video]
Campbell reviews a meta-analysis on vitamin D and respiratory infections.
@fattire May 2020 Cites it
on HN thread Vitamin D looks powerful, underutilized for Covid-19
Dr. John Campbell, an educator in Northern England who's been doing daily Youtube updates on Covid news since January I believe, has put out a few videos from time to time related to vitamin D: [this video] - A month ago [link] - 3 weeks ago [link] - 3 days ago He suggests vitamin D deficiency may play a partial role in explaining higher mortality rates among people with darker skin (other important social disparities notwithstanding).
One of several Campbell videos on vitamin D deficiency and mortality.
@fattire May 2020 Cites it
on HN thread Role of Vitamin D in the prevention of Coronavirus 2019 infection and mortality
Posted this previously when the subject came up, but John Campbell, an nurse and educator in Northern England who's been doing daily Youtube updates on global Covid news since January I believe, has put out a few videos from time to time related to vitamin D: [this video] - 2 months ago [link] - 4 weeks ago [link] - 1 week ago [link] - 4 days ago [link] - today He offers published studies as evidence to suggest vitamin D deficiency may play a partial role in explaining higher mortality rates among people with darker skin (other important social disparities notwithstanding).
First of several Campbell videos on vitamin D and mortality.

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

Keyboard shortcuts

/
Search
j k
Next / previous video
r
Surprise me
l
Like (video page)
w
Watch later (video page)
?
This help
Esc
Close