Vitamin D, an essential nutrient, plays a role in the production or biological activity of select hormones, and might therefore play a role in some types of hormone imbalances.  Our bodies make most of our Vitamin D from sun exposure and some from our diet but deficiencies are epidemic.

Vitamin D is key because it:

• Helps prevent osteoporosis

• Helps brain development

• Reduces pain sensitivity

• Reduces inflammation

• Stimulates immunity

There are important health benefits to maintaining your vitamin D blood level (or 25(OH)D level), above 100 nmol/L. Statistics Canada reports that 93% of Canadians fail to achieve this level. For the past 10 years, an expert panel of 48 vitamin D scientists, researchers and doctors behind the D*action advocacy campaign have recommended that people of all ages achieve a vitamin D blood level of between 100-150 nmol/L. In the United States, according to Scientific American, three-quarters of U.S. teens and adults are deficient in vitamin D, the so-called "sunshine vitamin" whose deficits are increasingly blamed for everything from cancer and heart disease to diabetes, according to new research.

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April 2020, there was an article published in PubMed stating, “Evidence supporting the role of vitamin D in reducing risk of COVID-19 includes that the outbreak occurred in winter, a time when 25-hydroxyvitamin D (25(OH)D) concentrations are lowest; that the number of cases in the Southern Hemisphere near the end of summer are low; that vitamin D deficiency has been found to contribute to acute respiratory distress syndrome; and that case-fatality rates increase with age and with chronic disease comorbidity, both of which are associated with lower 25(OH)D concentration