@elbrant said in Grain free food:
@eeeefarm said in Grain free food:
It's toxic at high levels, can cause kidney failure/death.
This article on the FDA website, Vitamin D Toxicity in Dogs seems to suggest that you need to watch for indications that your dog is sick and seek medical care. It also includes a frightening list of commercial dog foods that have been recalled for high Vit D content.
Ok, so.... what would be considered a "high dose" for the average B?
And how does natural sunlight play into this?
"Requirements for vitamin D are dependent on dietary concentrations of calcium and phosphorus, the dietary calcium:phosphorus ratio, physiological stage of development and perhaps sex and breed........ For dogs and cats (and presumably other carnivores), vitamin D must be obtained from dietary sources due to the inability of these species to synthesize and utilize vitamin D from precursors in the skin."
article
You can read a lot more in the article, but basically it depends on the composition of the food. Higher levels are needed if calcium/phosphorus is not properly balanced.