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Are you getting enough Vitamin D?

vit DFast Facts About Vitamin D3:

  • Though we obtain some of our vitamin D from dietary sources (most often fortified foods), most is made in our bodies through sun exposure.
  • In Canada, a lack of direct sunlight in winter means we don’t typically get enough exposure to make adequate vitamin D from October to April.
  • Approximately 1/3 of Canadians have vitamin D levels above 75 nmol/L, the minimum level optimal for health. Meaning that 2/3’s of us are deficient! (
  • A 2010 study estimated that 37,000 deaths could be prevented every year if the Canadian average vitamin D level was 105 nmol/L. (

Risks for Low Levels of Vitamin D:

  • SPF 15 sunscreen reduces D synthesis by 99%.
  • Dark skin – melanin can reduce vitamin D synthesis by up to 99%
  • Age – synthesis decreases by about 75% in a 70 year old
  • Low body fat levels – vitamin D is fat soluble
  • Specific medications can speed up breakdown of vitamin D
  • Cholesterol-lowering medications – having too-low cholesterol impairs the body’s ability to make vitamin D.

Did You Know?

  • Certain health conditions are associated with dramatically reduced stores of vitamin D3 and show benefit from significant supplementation.
    • Low levels of vitamin D may be linked to other diseases, including breast and colon cancer, prostate cancer, high blood pressure, depression, and obesity ( )
    • OHIP will only cover the cost of vitamin D testing for patients with: Osteoporosis, Osteopenia, Malabsorption Syndromes, Renal Disease, Patients on medications that affect vitamin D metabolism
  • The blood test for Vitamin D3 costs ~$35 – speak to your MD or Naturopathic Doctor today to request testing!

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