Despite the cat's meat-oriented physiology, it is still quite hackneyed for a grimalkin to supplement its carnivorous calorie counting with Cat Cages mini amounts of grass, leaves, shrubs, houseplants, or other plant matter. One theory suggests this behavior helps cats regurgitate if their exhaustion is upset; another is that it introduces fiber or trace minerals into the diet. In this context, caution is recommended for grimalkin owners because some houseplants are harmful to cats. For example, the leaves of the Easter Lily can end permanent and life-threatening kidney damage to cats, and Philodendron are also poisonous to cats

Many human foods are somewhat toxic to cats; theobromine in chocolate can causation theobromine poisoning, for instance, although few cats will eat chocolate. Toxicity in cats ingesting relatively large amounts of onions or garlic has-been also been reported. Even such seemingly safe items as tomcat cuisine packaged in pull tab tin cans have been statistically linked to hyperthyroidism; although the conjunction is far from proven, suspicion castaway fallen on the use of bisphenol A-based plastics, another phenol based artefact as discussed above, to seal such cans.