Anyone feed there chickens "Comfrey"

[pwand]

I have discovered I have this Comfrey growing in my yard and that its good for chickens. If I understood the article, it seems that its feed to them without feeding them chicken feed. See what you think.

http://www.allotment.org.uk/vegetable/comfrey/comfrey.PDF

 

[chickbea]

Internal consumption of Comfrey by humans and animals has been a source of debate for centuries. Some people swear by it as a digestive aid, others consider it poisonous.
The safest advice I have heard for chickens is to allow them access to it while they are free-ranging, but NEVER give it to confined chickens as they may then eat more of it than they should. That way they can pick at a bit of it as they see fit, but they won't gorge on it like a caged chicken might.