Foods chickens can NOT eat?

[Hennypen]

Please list foods chickens can NOT eat. I'd like to start giving table scraps but have been afraid to wihtout knowing specifics of 'bad' food for chickens.

Are bananas ok?

 

[gritsar]

You can go by this if you want:

https://www.backyardchickens.com/forum/viewtopic.php?id=21530

I don't give my chickens heavily salted foods or onions. There's really no reason I don't give them onions except I remember having milk from a cow that had gotten into a patch of wild onions and worry that much the same thing would happen with the eggs.

Everything else they eat.