Our rescue now adopted Kell was 16.01 when we got him at 4 mos, now at 6 mos he is 29 lbs!!! But he is taller than all our other Bs, he is so active there is very little fat on him. He was on the thin side when he first got here and ate almost constantly for 2 weeks. Now he gets a small breakfast and a normal supper with the rest of the pack. We bred our own Bs in years past, and they do tend to tighten up after a year. As a pup, I am not going to put him on a "diet" at this time. As long as she is healthy, eats well, I do not think I would worry about it. Our 5 year old girl only recently went over 20 lbs, and we changed their dog food and all the adults have lost weight and look and feel much better I do believe. Enjoy!