I have a 5 yr old chi, Little Bit, and she weighs about 11 1/2 pounds. I have had her on Science DIet Lite for 6 months that wasn't making any difference. Then my vet said just cut back her food intake, I did she still didn't lose an ounce. Now she is just on Science Diet Adult small bites. I am going to start walking her some now that the snow is pretty much gone since she isn't used to it yet it will only be short walks. And advice??