So, just a quick follow-up. I did another search to try to remember what I found specifically about dogs last time.
Dogs (and according to my pet thesis () all non-human species) are relatively resistant to ketosis.
The earliest study was 1941 (http://www.jbc.org/content/138/1/123.full.pdf), in which it was shown that it takes dogs 2-3 days of fasting to achieve ketosis, vs. ~39 hours in humans, and even then itās not as deep. Ketone bodies are used perfectly well by most mammals, including dogs, but produced only in food shortage.
All other studies I could find that did not calorie restrict used MCTs or ketone body esters, exactly because it is known to be difficult to induce dietarily.
The only exception seems to be in pregnant bitches. They can have impaired glucose production, which will induce some ketosis on a carbohydrate free but fully fed diet.
Therefore, I assume that the sanctuary is either protein restricting, using MCT oils, or both.
To put a finer point on it, I sincerely doubt that your dog or my cats are in ketosis when we feed them natural, raw, carnivorous diets. Nonetheless, I still expect it to be much healthier than feeding them the crap thatās sold in stores as pet food.