Mine Eat Them Too ... 1 Day My Husband Showed Buddy A Worm And Now Thats All He Does And The Other Day Maddy My Little Girl Yorkie Carried A Dryed Up 1 In The House In Her Mouth And Drop It On The Floor,,, So I Dont Think It Will Hurt Them Just Something For Them To Get Into...there Just Like Kids Everything Gos In There Mouths!