Over the years, and just recently, there have been food recalls concerning excess vitamin D in pet food and reported ‘vitamin D intoxication’. Pets eating these foods and exhibiting signs of hypercalcemia are assumed to have vitamin D intoxication. Background: Vitamin D exists as three different forms: Vitamin D3 25-hydroxy-vitaminD (25(OH)D) 1,25-dihydroxy-vitaminD (calcitriol). Both D3 and 25(OH)D are […] Read more »