Vitamin D

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What do you know, this super vitamin not only fights cancer, but it also fights colds. Yet another reason to take it.

How much?

Osteoporosis Canada recommends 400 to 1,000 IU for adults under age 50 without osteoporosis or conditions affecting vitamin D absorption, and 800 to 2,000 IU for adults over 50.

The Canadian Cancer Society recommends 1,000 IU daily during the fall and winter. During the spring and summer, that can be accomplished through normal daily exposure to the sun.

Which one?
My NMD, on the other hand, recommends this one, at 10,000 IU a pop.