I put Rusty on a diet several months ago. He was 54.5 pounds. He was not overweight but it was getting difficult to see his waist when standing over him. You can see he is slimmer in the second photo at the waistline. I cut his food portion back . ALSO, I continued to exercise him with walks daily totaling about 3 miles. That really helped. Now he is 50 pounds, perfect I'd say. I wouldn't really be concerned about the number so much. Watch his figure and exercise him. You will see when his body starts to change. I guess if you didn't exercise him it would be a slower process???