I HAVE A 2 YEAR OLD BOXER, FEMALE,SHE SEEMS HEALTHY BUT I THINK SHE LOOKS SKINNY. SHE WILL ONLY EAT ONCE A DAY AND HARDLY A FULL BOWL.
Have you had her checked by the vet? Boxers are lean dogs by nature. Their average weight is about 66-70 lbs. If she is loosing weight I would be more concerned. vetcare