And not only the China virus, but similar viruses like regular colds and flu.
from the Times of Israel
Bolstering previous research, scientists publish ‘remarkable’ data showing strong link between vitamin deficiency, prevalent in Israel, and death or serious illness among patients.
Israel scientists say they have gathered the most convincing evidence to date that increased vitamin D levels can help covid patients reduce the risk of serious illness or death.
Researchers from Bar Ilan University and the Galilee Medical Center say that the vitamin has such a strong impact on disease severity that they can predict how people would fare if infected based on nothing more than their ages and vitamin D levels.
Lacking vitamin D significantly increases danger levels, they concluded in newly peer-reviewed research published Thursday in the journal PLOS One.
Waikanae Watch 
SFM: Just as we’ve gone to industrial food, we’ve gone to industrial agriculture—that’s mono-cropping, mono-species, feeding animals lots and lots of grains. The animals aren’t in the sunlight, they aren’t on pasture, and they’re not as healthy because they do get antibiotics. It’s led to food that is just not as nutritious. Vitamin A content is much much lower in the eggs and the fat and the beef; vitamin D content is much lower.
https://food52.com/blog/22743-nourishing-diets-sally-fallon-morell-interview-paleo-ancestral-diet
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