Some info you will be interested in:
Vitamin D for influenza
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4463890/
Excerpt - last two paragraghs:
The Institute of Medicine recommendation for adults younger than 70 years of age is 600 IU of vitamin D daily. We are told that this would achieve a level of 50 nmol/L in greater than 97.5% of individuals.6 Regrettably, a statistical error has resulted in erroneous recommendations by the Institute of Medicine leading to this conclusion and it might actually take 8800 IU of vitamin D to achieve this level in 97.5% of the population.7 This is a serious public health blunder.
A colleague of mine and I have introduced vitamin D at doses that have achieved greater than 100 nmol/L in most of our patients for the past number of years, and we now see very few patients in our clinics with the flu or influenzalike illness. In those patients who do have influenza, we have treated them with the vitamin D hammer, as coined by my colleague. This is a 1-time 50 000 IU dose of vitamin D3 or 10 000 IU 3 times daily for 2 to 3 days. The results are dramatic, with complete resolution of symptoms in 48 to 72 hours. One-time doses of vitamin D at this level have been used safely and have never been shown to be toxic.8 We urgently need a study of this intervention. The cost of vitamin D is about a penny for 1000 IU, so this treatment costs less than a dollar.
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Low Vit D levels are also strongly implicated in having a more severe course of COVID and a higher mortality rate.
The version of the D-hammer I used the first time then when I had WuHan symptoms 15 years later was 900 units per pound of body weight. Both times the bugs were gone in under eight hours. It also worked for several progeny and other relatives that I proselytized D3 to in the midst or the beginnings of bad flus. The instructions I heard were to do it a second time the next day if the malady was not cleared up by the first dose. No one I know felt he had to use that second dose.
“50 000 IU dose of vitamin D3”
Wow! I read a Japanese study several years ago discussing vitamin D and viral infections. They said to increase the dosage if you are symptomatic but I don’t remember a level that high.
So I re-researched it, They recommend 50,000 IU for the first 3 days that you are symptomatic.
Dang. That seems to be a hell of a lot. Read here you need to take K2 if you are taking high doses. Who knows.