ZRT Lab

Vitamin D Test (Exclusive lab tests)

$735

Are you among the more than 40% of adults who have sub-optimal vitamin-D levels? Are you aware of the numerous chronic health issues associated with low vitamin-D, including heart disease, diabetes, metabolic disease, and more?

Vitamin-D also plays a strong role in immune health, partially because of its role in calcium absorption. This at-home blood test will provide health insights by measuring your level of vitamin D. Most people require some degree of vitamin-D supplementation and this test enables me to accurately assess your optimal dosage. 

Take this test if you…

  • Do not get daily sun exposure or live in a northern latitude
  • Follow a vegan or vegetarian diet
  • Have darker-pigmented skin
  • Have issues with small intestine absorption or kidney function
  • Are an athlete or engage in regular physical activity
  • Are overweight or obese
  • Are elderly

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