The realty of IMPLEMENTING that concept can be very difficult and is not for the faint of heart. Cats learn their safe and favorite food preferences very early on in life, from their mother if she is around and from the human environment that they are born into. This is really locked into their brains and is profound. The problem is that the convenience of feeding kibble unknowingly creates an ingrained pattern that can be very difficult to alter. In addition, cats can get into trouble by "starving them out" or getting them hungry enough that they will eat a new food. Humans and dogs can go days to weeks without food and not do permanent harm. Most of us as well as dogs, will willingly try any food after 2-3 days! Cats however do not have the enzyme cascade in their livers to safely tolerate extended food deprivation. So this leaves a tricky and frustrating path to converting a dry food addict cat to raw or canned food. However, the driving concept is the knowledge backed by solid research that dry kibble for a cat is creating many health problems. Even Purina has done research to support this concept.