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I used to get 1-2 sinus infections a winter. Doc recommended Vitamin D. I get the 50,000 IU pills from Amazon. I take them 3-4 times a week during winter, 1-2x a week during summer.
No sinus infections in the intervening 15+ years. My colds are far less frequent and much less severe. Instead of a cold that knocks me of my feet for 5-7 days, it’s 2-3 days and pretty mild. If I don’t take my Vitamin D as I should, I can get more severe colds but I still don’t get the infections.
Don’t get the 5,000 unit pills. Get the 50,000 ones. 3-4 times a week from October thru April try it for a winter and you’ll be surprised.
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