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Originally Posted by Jackbrooks  Hi there my friends Maltese did the same thing. She is 15 years old and in perfect health. But when she turned 13 you could feel her ribs ect but weighed the same. The only conclusion the vet cam up with was she had lost weight regarding fat but was building more muscle as she was still taking her daily walks. Muscle weights more than fat.
I don't know if this helps xx |
This is what I was going to suggest too, I can't think of anything else except that muscle weighs more than fat, has she been exercising more or more consistently? That would explain it.