"As people have become more health conscious, so have they been paying more attention to the health needs of the furry members of the family. To this end many animal lovers have become aware that the majority of commercial pet foods contain unhealthy ingredients and have shifted instead to sharing the refrigerator and cupboards. While natural, fresh food is far healthier than byproducts and preservatives, keep in mind that the foods listed below are known to be toxic to cats and dogs because of the different ways animals metabolize them.