"
There are many types of cherries, all of which are pretty popular snack foods. It’s no wonder why – they’re delicious! While the pulp of the fruit is safe for dogs to eat, the plant and pit are moderately toxic to our dogs, and can result in respiratory failure and death. In fact, the plants and pits contain cyanide, so it’s no surprise that they are toxic. Be sure to keep your dog away from cherry plants, and feed only the pulp if you’re going to share with your pooch.
Read more at
10 Fruits & Vegetables That Are Toxic to Dogs stuff needs to be consumed in large amounts. If they get a pit now and then I wouldnt worry.