iMy lovely neighbor has a five year old dog with hip dysplasia. It weighs about 100 pounds. This woman is elderly and very sweet. Her dog is all the family she has left, and she is sorry to see the dog hurting. The dog can not walk much and is becoming grumpy, although it is a very good and well trained dog. The back end of the dog looks a size too smale for the front of the dog. I was thinking that hip dysplasia resembles rickets. I am not sure about dosing vitamin D to a dog. I think also large doses of oral progest E might be useful. Her vet says its genetic (of course) and nothing to do with those little burned balls of dog kibble. Although, as i have gotten closer with her she told me she scrambles three eggs every morning. One for her and two for the Dog! Has anyone had experience with hip dysplasia? Anyone seen it improve?