D for Health

Community Health

Vitamin D Deficiency by Season

  The chart below demonstrates the profound influence that season can have on vitamin D levels and risk of deficiency. During the summertime, for example, there

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Cold & Flu

Vitamin D Reduces Colds and Flu

In the GrassrootsHealth questionnaire that accompanies D*action, participants are asked whether they had a cold or flu in the previous 6 months. What can we learn

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Cancer

Vitamin D Intake & Toxicity

Is your doctor telling you that you are taking too much vitamin D? The chart below, based on a review published by Hathcock et al., shows the incidence

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