It is the most natural, most nutritionally balanced, most easily digested and of much higher quality than canned or dry food. Many commercially produced pet foods contain preservatives such as BHA, BHT, or even MSG which can cause birth defects, liver and kidneys problems, baldness and brain defects. They may also be carcinogenic and what is really scary is that humans eat these preservatives also in such foods as breakfast cereals. The salt content of many pet foods can be as high as 1000 times more salt than what your pet needs in one day. The excess salt can cause high blood pressure and heart disease in animals.
Epilepsy is now more common in dogs than in humans.
Both sugar and propylene glycol are linked to obesity, allergies, tooth decay and other problems like forms cancer. Propylene glycol sister ethylene glycol is used in the making of anti-freeze and to think it's in the food we feed our pets. A relatively new ingredient in pet food is ethoxyquin which has been implicated with thyroid problems, hair loss and reproductive disorders. Ethoxyquin is made by Monsanto, the same company that makes the lawn pesticide known as Roundup, the Bovine Growth Hormone and Monsanto also makes the chemicals sprayed onto new carpets. Ethoxyquin which was originally created as a rubber hardener has also been used as a pesticide and at one point was deemed 'harmful and deleterious', but in 1958, Monsanto had its lobbyists influence politicians.