Hi there. I have been giving Uncle raw fermented goat's milk on the advice and recommendation of my vet.
The brand is called "Answers" the product is "Additional -Goat's Milk".
I called the company that makes it to ask if it was okay to give to diabetic cats since honey is listed as an ingredient. They said the honey is used as the starter to ferment the milk, it's predigested by bacteria and so there's no sugar content. He said it's beneficial for diabetic cats! You can go the the "Answers" website to find who wells it in your area. Hope this helps!