re: Vitamin D
Real science is never settled, and anyone who has certainty on such things is not qualified to discuss it.
Keep in mind that Joseph Mercola DO is one of those rogue doctor types. I’m not clear if he is an MD or not, but he is a Doctor of Osteopathy (DO).
Don’t count me in on all the claims in this article, but extensive scientific evidence exists around Vitamin D playing a major role in the human immune system, and many other areas.
2021-03-15, by Joseph Mercola, DO
A lack of the sunshine vitamin is linked to fatigue, aching muscles, and a dozen other symptoms.
[WIND: sunshine has a lot more to offer than just Vitamin D, see photobiomodulation]
Vitamin D regulates the expression of hundreds of genes and is integral to biological functions that affect every bodily system. Vitamin D insufficiency or deficiency can trigger several generalized symptoms that you may have associated with other health conditions.
It’s also called the sunshine vitamin since your skin makes vitamin D when exposed to ultraviolet light from the sun. Vitamin D performs many functions within the body, including maintaining adequate levels of calcium and phosphate, essential for normal bone mineralization.
It helps reduce inflammation, which is necessary for the modulation of cell growth and immune function. Vitamin D also affects genes that help regulate cell differentiation and apoptosis (routine cell death).
COVID-19 and Vitamin D Deficiency
Vitamin D plays an important role in the development and severity of many diseases. This is why, from the very beginning of the COVID-19 pandemic, I suspected that optimizing vitamin D levels would significantly lower the incidence of infection and death in the general population.
Since then, mounting evidence has revealed this is indeed the case as researchers have repeatedly found that higher levels of vitamin D reduce the rate of positive tests, hospitalizations, and mortality related to this infection...
[WIND: correlation is not causation, but see my comments in The sunshine vitamin that ‘D’elivers on cardio health]
Magnesium and Vitamin K2 Optimize Your Vitamin D3 Supplement
Vitamin K2 MK-7 and magnesium both play an important role in your overall health and in the bioavailability and application of vitamin D in your body. If you’re not using magnesium and vitamin K2, you could need nearly 2.5 times more vitamin D, which GrassrootsHealth discovered in its D*action project.
WIND: nutrients are synergistic, including absorption and action. And some can compete. But the triplet of Vitamin K2 + magnesium + Vitamin D are highly synergistic in action. Which is why “scientific’ studies that look at any one of them in isolation without even measuring the others are stupidly-designed.