The seed pods that fall from Kentucky coffeetrees contain the toxic alkaloid cytisine, which is poisonous to both humans and animals. That being said, the seeds are not easily mistaken for pet food, unless your pet is known to chew on yard scraps, and leaf litter, the seeds are unlikely to be ingested. The cytisine is rendered ineffective when the seed pods are thoroughly roasted allowing them to be safely consumed or brewed into Kentucky coffee.