I feed it to my girls on occasion, it makes a sticky mess on their beaks! I'm sure it's ok once in a while, but it really has minimal nutritional value. Then again, neither does the styrofoam, paper towels and plastic beads I have caught them eating...
Yep, for two years now Kitty has had a large thick styrofoam box as her kitty house. The chickens discovered it and Kitty no longer has a kitty house.
Mine love cooked white rice. Little nutritional value, but a nice diversion from pecking Kitty's box.