What happens if a dog accidentally drinks cat milk?
Nothing problematic. Milk is a nutrient intended for mammals. As
such, it's pretty harmless, and sometimes beneficial stuff,
regardless of species. That is absolutly correct. The only issue
that may occur, is an upset stomach, and temporary constipation or
diareha. Any change, or unusual additions to their diet will make
them suffer an upset stomach. Unless he has an allergy to milk,
then the reaction will be much different. I'd just keep my eyes
open, anytime my dog got any unplanned food, just to make sure that
any discomfort that might occur goes away prompty.