Your dog can last for 2 to 3 weeks without food - becoming weaker as time goes by. But, why are you so adamant that she not have any chicken or broth on her food? That is NOT spoiling her. Plain chicken and a little broth added to her food is very healthy and won't harm her teeth in the least.
Dog DO NOT get worms from eating healthy people food - that's simply ridiculous. A little chicken added to her food will not give her pancreatitis or anything else. It's very healthy despite what others may say.
In fact, we used to add a bit of chicken to many of our breeding and show dogs meals to encourage a healthy appetite and fish oil to produce a healthy and glossy coat. Chicken is VERY easy for dog's to digest, and chicken (mixed with cooked rice) is one of the first meals a vet will recommend for a dog that has been ill or convalescing.
But, if you MUST eliminate the chicken, then do so slowly. Over time, decrease the amount of chicken and/or broth you are adding to her kibble and she will likely not miss it over time. \
But again, a little chicken or chicken broth on her food is NOT unhealthy nor does it mean your dog is spoiled.
Breeder, trainer and exhibitor of AKC German Shepherds for 25+ yrs.