Please read the website
Better stop it before it get to the seeds, here are some sad stories about people loosing there dogs to the sago palm seeds
Palm trees can be deadly to dogs if eaten, and even to children
We just returned from the emergency vet our 18 week old lab ate a sago palm. She is very sick and according to the vet will probably die because of liver failure. We did not know sagos are poisonous there are no warnings on the plant. I would take your dog to the nearest vet ASAP. Because any part of the plant from what we understand is toxic.