The makers of raw meat diets often suggest a meal plan that contains whole, raw dairy. Yogurt is valuable because it provides probiotics to the diet. I think dairy given as a treat is fine once and awhile. Again, it is giving a variety of foods that acheives balance. Pasteurization as mentioned above kills bacteria.
Pasteurization leads to arthritis is a false claim.
I have never read or heard of this. Arthritis is thought to be an allergic reaction amongst many other things. It is a personal choice to feed dairy products to your pets. Make sure you make an informed decision prior to deciding. Dogs are carnivores Yes dogs are carnivores.