If a dog eats Solid Gold / Eagle Pack (whatever presumed low quality range of dog pellets) enthusiastically, it is because it is tasty and has lots of preservatives, and all the unhealthy, junk food, and the like in it, that is causing the dog to love it sooo much.
If a dog eats Solid Gold / Eagle Pack (whatever presumed low quality range of dog pellets) NOT enthusiastically, it is because it is tasty and has lots of preservatives, and all the unhealthy, junk food, and the like in it, that is causing the dog to hate it sooo much.
If a dog eats Nature Variety (whatever presumed high quality range of dog pellets) enthusiastically, it is because it is natural and healthy, and no preservatives, and the like in it, that is causing the dog to love it sooo much.
If a dog eats Nature Variety (whatever presumed high quality range of dog pellets) NOT enthusiastically, it is because it is natural and healthy, and no preservatives, and the like in it, that is causing the dog to hate it sooo much.
When a food that is presumed/regarded as good, no matter what and how a dog reacts negatively, the food is still God.
When a food that is presumed/regarded as bad, no matter what and how a dog reacts positively, the food is still Devil.