Ok first of all, I am going to reply to you both and I'll leave this discussion here. I'll probably open a separate thread about Vitamin D.
Hypercalcemia itself is reversible, but things it causes might not be. The most likely example would be renal stones, which can cause acute kidney injury and permanent renal damage. Paralytic ileus can lead to bowel perforation requiring major abdominal surgery. Hypercalcemia will make cardiac myocytes relatively refractory to depolarization, which in severe cases can lead to cardiac dysrhythmias and cardiac arrest. Hypercalcemia is not a benign condition.
Yes, of course. The point is that many times the issue of hypercalcemia is highlighted as if by taking 5-10k you are going to develop hypercalcemia and therefore have permanent kidney damage and the like, when cases are rare, you have to take massive amounts of vitamin D in supplements (you never develop hypercalcemia by sunbathing) and it is not that by developing hypercalcemia you are going to have permanent physical damage 100% of the time. The normal thing for someone who takes doses considered high, is to stop taking them at the slightest symptom, another thing is the people who take these amounts uninformed, or who begin to notice symptoms, do not attribute them to the consumption of vitamin D, and continue consuming large amounts until it is too late.
Important to specify this only applies to type 2 diabetics. If a type 1 diabetic stops taking insulin, they will die.
Yes, of course.
Sure, it improves overall health. But this doesn't mean that vitamin D is a viable alternative to vaccination. Evidence in general suggests that it helps with Covid outcomes, the paper linked to above notwithstanding. I might suspect (but have no data) that the link between vitamin D deficiency and skin pigmentation may be a factor in the higher Covid rates amongst the BAME population. Vitamin D may help to an extent, just like masks help to an extent. But if you want immunity, your options are either catch it, or take the vaccine.
Well, I can agree with that, although I am not 100% sure, but in general agree with this and the rest of what you say. Here again it is shown that although we may have different points of view on many things, by debating we can come to discover that sometimes we have closer thoughts than it would seem at first.