Heartland Assays

How do I know which Vitamin D test to order?

25OH Vitamin D for general nutritional status

1,25(OH)2 Vitamin D for renal disease, sarcoidosis, hyperparathyroidism, Vitamin D resistant rickets (generally in felines)

Total Serum Vitamin D2 and/or Vitamin D3 - experimental supplementation with Vitamin D2, Vitamin D3, or suspected Vitamin D toxicity.

Vitamin D2 or Vitamin D3 in foods, feeds, and supplements - Contact us for additional analyses offered.

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