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How and when do I use it?

  • Athletes who are tested and found to have low levels of Vitamin D should be informed about the important role that Vitamin D plays in health and sporting performance and that supplementation is safe and beneficial.
  • Depending on time of year, athletes identified with inadequate Vitamin D status will require 2000 IU/day for 1-2 months to restore status. Thereafter, Vitamin D status should again be verified via a blood test.
  • Athletes at risk of Vitamin D deficiency include those who:
    • Have low exposure to sun in training environment (e.g. training indoors or in early morning and late afternoon).
    • Have dark skin pigmentation
    • Live at latitudes > 35 degrees north or south of the equator [Brisbane = 27 degrees, Perth = 32 degrees, Sydney = 34 degrees, Adelaide and Canberra = 35 degrees, Melbourne = 38 degrees, Hobart = 42 degrees).
    • Wear clothing that covers most or all of their body.
    • Regularly use sunscreen or consciously avoid the sun.
    • Are missing limbs (e.g. many athletes with disability).
    • Have gastrointestinal malabsorption (e.g. Coeliac disease or fat malabsorption syndromes).
    • Have a family history of bone injury/disorders or Vitamin D deficiency.

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