One weird thing I noticed was that Vitamin D supplementation, while it improves outcomes in terms of cancer, does not seem to improve risk of cardiovascular disease. Maybe it's just that people who get sufficient Vitamin D from sunlight are more likely to get outdoors and exercise ;-) But it made me wonder if there's some additional benefit of sun exposure, some vitamin we haven't discovered yet.
But incidentally, that's one of several reasons vitamin D is thought to protect from bad covid outcomes: in studies, people with higher blood calcium levels were also shown to do better. Other electrolytes were also positively correlated with better covid outcomes as well.
Aside from raising calcium serum levels vitamin D also directly modulates genes involved in the regulating angiotensin-renin system, including ACE-2.
The third thing, vitamin D is involved in circadian rhythm signaling. Good sleep is important for overall well-being! Especially if you're sick.
There are lots of papers and books about this stuff yet for some reason people still doubt that adequate vitamin D is important.
The real atrocity of it is that some people with more melanin in their skin store less vitamin D, since more melanin means their skin can make it quicker in the presence of sunlight. But in regions where there's less sunlight, these people aren't keeping around as much vitamin D. I'm convinced this is one reason for disparity in COVID outcomes and it really bothers me that the early studies and theory papers about the vitamin D / calcium / COVID connection got so ignored in the face of blatant racial disparities in COVID outcomes.
Vitamin D3 + K2 had huge potential to save lives, and people who knew what they were talking about advocated for this early on. I'm still frustrated that it took so long to catch on.
This finding was very clear to me early in the pandemic when people said racism was "the real virus." It's clear that the heavy death toll on dark-skinned minorities probably had a physiological reason.
Vitamin D3 can be toxic at high doses. I live in Seattle and was at one point (years ago) tested and found deficient. My doc said many of his patients are. I was on 50k IU weekly for a few months to get back into range, and now I take 2k IU daily, with vitamin K2.
Anecdotally, I had something nasty with COVID-like symptoms in late 2019 and have had 1 minor cold since. I take other vitamin/mineral supplements, but passed on the experimental shots.
*COVID-19 and Vitamin D | Association Between Vitamin D Deficiency and COVID-19
The trouble with most of these studies is that they don't actually measure blood vitamin D levels. The amount of supplementation necessary to reach a target level can vary by an order of magnitude between individuals based on sun exposure, skin color, diet, genetics, and other pathologies. So ideally researchers should periodically run blood tests on the study patients, then titrate supplements to hit the study's target vitamin D blood level for each one. If course, this is more expensive.
Absolutely should not do anything like 50k per day. I found that 5k could help but if I did that every day it felt like maybe too much.
I had never heard of IU. It's a very weird unit that is different for different substances. One IU of Vitamin D is 0.025µg, so 50K IU of Vitamin D is 0.00125g. Someone could probably get 50K IU of Vitamin D stuck in their eye by accident and not even realize it.
10k a day is a lot, one would be strongly advised to regularly check blood levels if you want to keep that up.
e.g. zinc twice a day:
Vitamin 'D' : https://en.m.wikipedia.org/wiki/Vitamin_D
Vitamin 'D' Deficiency : https://en.m.wikipedia.org/wiki/Vitamin_d_deficiency
Vitamin 'D' Toxicity or Hypervitaminosis 'D' : https://en.m.wikipedia.org/wiki/Vitamin_D_overdose
Vitamin 'D' (disambiguation) : https://en.m.wikipedia.org/wiki/Vitamin_D_(disambiguation)
Vitamin 'D' Deficiency : https://en.wikipedia.org/wiki/Vitamin_d_deficiency
Vitamin 'D' Toxicity or Hypervitaminosis 'D' : https://en.wikipedia.org/wiki/Vitamin_D_overdose
Vitamin 'D' (disambiguation) : https://en.wikipedia.org/wiki/Vitamin_D_(disambiguation)
There are likely other benefits as well.
Doesn't say whether it works or not, just whether or not it is a vaccine.
During winter people get less Vitamin D and stay indoors in close proximity.
The low temperatures do not make you sick. The secondary effects of the season-that-is-cold does.
Even if you have nice big windows the UV doesn't pass through so inside regardless of where you are does next to nothing for you.
In 2020 virtually everything was someone’s secret solution to covid that the man was suppressing.
The language of uninformed skepticism really bothers me. Using terms like "quack science" and "crank". What does that do? It just heaps stigma into an already complex and messy conversation that really needs nuance, thoughtfulness and care.
For what? To distinguish yourself as smart? To me that kind of language just comes off as reductionist.
Despite this fact, it was "The Science" that vitamin D was not to he taken and "COVID Disinformation" to suggest otherwise.
Doesn't have to mean tanning for half an hour. But more than walking to your car.
Naturally, you'll want to start engaging in activities that increase your heart rate to the level necessary to remain healthy over the many decades of your life.
If you take over-the counter supplements and follow the instructions you're unlikely to overdose.