Vitamin D

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Vitamin D Side Effects, Interactions and Warnings



  • Hypercalcemia may occur in vitamin D supplementation.
    - Calcif Tissue Int 1995 Jun;56(6):518-20 -- Vitamin D supplementation in the elderly: review of safety and effectiveness of different regimes. -- Byrne PM, Freaney R, McKenna MJ.

  • Vitamin D can be very toxic in high doses.
    - Am J Clin Nutr 1999 May;69(5):842-56 -- Vitamin D supplementation, 25-hydroxyvitamin D concentrations, and safety. -- Vieth R.

  • Vitamin D can interfere with various medications. Consult with your physician before using.

  • Vitamin D may have an effect on the thyroid.
    - J Vet Med Sci 1996 Jan;58(1):75-6 -- Effects of vitamin D3 injection on activity of thyroid parafollicular cells in pregnant rats. -- Won JH, Taniguchi K, Sato R, Naito Y.




Nutrient Values
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  • Nutrition Information








  • last update: February 2014



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