“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.
If you are taking D3, you should be taking K2. D3 helps you absorb calcium, but it is Vitamin K2 that influences where this calcium goes. Low K2 status could mean calcium build-up in unwanted places (like arteries, rather than your bones).
If you query something like “why take K2 with D3”, you’ll find plenty of articles on the subject