Phone the vet and ask if you need to bring the dog.
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Usually unless your dog has an allergy to nuts it would be a no you do not need to take a dog to the vets. Unless the are Macadamia Nuts, in which case seek advice urgently.
There is a lot of conflicting advice on the internet about what to feed dogs and why but from my experience this site is quite durable under scrutiny.
http://terra4incognita.wordpress.com/2007/05/10/things-that-are-dangerous-for-dogs/
Hint. If it's poisonous to you, it is doubly poisonous to the dog.
Take him to the vet.
Take him/her to Vet
Try to get the dog to vomit and take it to the vet.
Take it to the vet.
Take the dog to the vet immedeatly this can kill a dog!
Take him to the Vet laugh
Take it to the vet a.s.a.p
This cannot be good. Take her to the vet.
the dog probably ate something it wasn't mean't eat so take the dog to the vet
you have to take him DEFINETLY to the vet right when you see this
Take it to the vet. If it's not digesting it, then the vet may have to remove it.
eh.. Take it to a vet?