Do you recommend large doses of Vitamin D3 to help avert colds?

Two years ago I had ahead cold in the months of November, December, January, March and April. In each of the 5 cases it took two weeks to run its course. Last year, after upping my Vitamin D3 intake to 10000 IU's per day I did not have a single cold. This year, November, 2012, I am in the midst of my first cold after reducing my Vitamin D3 to just 500 IU's per day. Should I up my intake to 10000IU's once again?

Comments for Do you recommend large doses of Vitamin D3 to help avert colds?

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Recommend keeping your vitamin d level within optimal levels
by: Kerri Knox, Registered Nurse

I recommend that you keep your vitamin d levels within the optimal levels as I outline on the Vitamin D Therapy page.

You're right that vitamin d can help to avert colds, but I don't recommend just taking random amounts, but instead keeping your levels in the optimal range year round in order to avert colds as well as a variety of other health issues. If you've not had a vitamin d level taken, then I would suggest that you start there.

Kerri Knox, Registered Nurse

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