[Madam Theophilus]

Influenza, Flu Shots, and Vitamin D
http://www.vitamindcouncil.org/newsletter/influenza-flu-shots-and-vitamin-d.shtml

This is only one of dozens of articles linking Vitamin D deficiency with influenza.

[Popman]

This is only one of dozens of articles linking Vitamin D deficiency with influenza.

Thought strictly anecdotal, I started taking a vitamin D3 about a 18 months ago, I have not been sick even once, not even a sniffle.

[goodwithagun]

I had the flu once this year. It happened about three days after I ran out of D3. When my order finally arrived I was too sick to keep the capsules down. I haven’t allowed myself to run out again. I think this is also a great time to increase my family’s probiotic intake.