Hi Patricia-
Weight loss is all about calories. The dog must burn off more calories than he/she is taking in in order to maintain a healthy weight or lose weight. 1 freeze-dried patty as a topper, plus an amount of kibble that you have not mentioned, for a Chihuahua sounds like a lot of food. Is she going for walks daily? Is she getting out in the yard with you and doing activities that allow for her to burn off energy?
A freeze-dried topper, though seemingly healthy, may not be appropriate for your dogs current lifestyle and could be causing more problems than not. My suggestion would be to go back to using canned food as a topper for her if she was a healthy weight when that was her diet. Also please cut out any treats she is getting and replace those with petting, attention, walks or another form of excerise. That is the best way to love our dogs.
