I've heard that Apple and tomato seeds are toxic to chickens. I give cut-up apples to my flock if I've made salad for the bearded dragon, but even then it's been cored so no seeds. I don't give them tomatoes at all (because I'm not going to the trouble of seeding a tomato) but I'm sure they would love it if I did. Is this a real thing or am I being paranoid?