I use carrots...along with other veggies.    I use baby carrots for my dogs to snack on.....good for their teeth.  I also have been baking chicken legs in a pan and throw a whole small bag of carrots in with them...... after the chicken is done I cut everything all up...add some chopped mustard, collard or turnip greens and mix them all together and add it all on Gibbys EP at night. He gets a raw egg or cottage cheese in the morning with frozen BilJac or EP kibble.