Will chestnuts poison horses?

it is winter at the moment, and i have been really busy and unable to ride my horse. hes grazing in a paddock with about 20 chestnut trees and he spends all day eating them. (the chestnuts.) will these poison him? or are they ok?

Will chestnuts poison horses?
I found this website:

http://www.racehorseherbal.com/Wild_Herb...



Interesting article cause it says it's not 100% known. Cattle have eaten them and lived.

I have also said, unless a horse is starving, the generally don't eat anything poisonous.

Good luck
Reply:Horse chestnuts contain a bitter poison called aesculin

http://www.moscowfood.coop/garden/chestn...