No, spaying does not cause a dog to gain weight. Diet and exercise controls body fat in dogs, just like in humans.
Originally Posted by Zippy
Is Zippy's 18 lbs appropriate for her frame? In otherwords, would it be healthy for her to lose weight?
You can purchase a seatbelt harness that attaches the dog straight to human seatbelt. They are more appropriate for larger dogs, in my opinion. But the Look Out Bench in Cathy's post is good up to 70 lbs. It would raise Zippy to the window AND keep the dog fur off the car apolstery, which is always a plus.
Cedar (tri), Willow (blen), Holly (ruby), & Bella (blen)