Are Walnuts Okay For Dogs. Let’s look into that a little deeper…. English walnuts (most commonly used for cooking) are the safest of the walnuts and not toxic to your dog.

Even so, the nut does cause a certain level of discomfort and some minor paltry side effects. However, if you give your dog walnuts as treats, they. The toxin can cause weakness, paralysis, and even death.