Last updated on October 2018

Effects of Vitamin D3 Versus 25OHD3 on Mineral Metabolism and Immune Function


Are you eligible to participate in this study?

You may be eligible for this study if you meet the following criteria:

  • Conditions: Vitamin D Deficiency
  • Age: Between 18 - 100 Years
  • Gender: Male or Female

Inclusion Criteria:

  • Age > 18
  • 25D < 20 mg/ml

Exclusion Criteria:

  • Age < 18
  • 25D > 20 ng/ml at time of screening
  • Clear signs of infection at time of screening (coughing, sneezing, wheezing, frequency, dysuria)
  • History of conditions that would influence intestinal absorption of vitamin D3 or 25OHD3 supplements
  • History of nephrolithiasis, primary hyperparathyroidism, or other metabolic bone disease
  • History of chronic kidney disease (defined as CrCl < 30 ml/min)
  • History of rheumatologic or autoimmune conditions
  • History of sarcoidosis
  • History of active or latent tuberculosis
  • History of HIV
  • History of hyperthyroidism
  • History of chronic glucocorticoid use defined as the equivalent of 5 mg of prednisone per day for more than 2 months within the last 6 months
  • History of use of medications known to affect calcium/vitamin D metabolism, bone metabolism, and immune response
  • Hypercalcemia
  • Hypercalcinuria

Recruitment Status: Open


Brief Description Eligibility Contact Research Team


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