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RE: Vitamin D 'triggers and arms' the immune system
I'm in the sun everyday for several hours at a time. I had my vitamin D level checked and was low. Dr. put me on 5,000 units per day. Like your post, cullyguy
I've been taking 10,000 IU for the past 2 years and haven't been sick since. But since I posted this I'll probable get sick now, LOL.
I believe vit D will help you from getting the flu, don't take the shot myself