Is my Schnauzer too fat or too thin?

by Mama Nan

My mini schnauzer weighed 29 lbs when we rescued her. She had just had puppies which accounted for some of it, however, she seemed to stay at that weight and constantly had UTI's.
The vet said she needed to lose some weight. She has lost 9 lbs in a year and now we think she looks too thin. She has that definite curve behind her rib cage. My husband thinks her body should be straight instead of having that curve. What is my schnauzer's body supposed to look like?
She's healthy, her blood work was good. She hasn't had any UTI's in a year. She's active and happy. She is not on processed dog food. I feed her unseasoned, human grade food (lean meats, veggies, fruits, dairy). This is how I got her weight off.
Maybe I need to increase the amount of food she is getting. She gets about 1 1/2 cups 2X a day.

Anxious to hear from you.