Head Shaking And Mouth Foaming

Thanks!! My boyfriends dog eats them just fine!!!

It appears your dog has had an allergic reaction to one of the ingredients in the slim jim.

Was your dog's head shaking like he was trying to spit out what you gave to him? Or was he shaking like he couldn't control his movements? Did he seem disoriented? You might need to provide more details to how your dog reacted. It could've even been a seizure. Don't feed your dog food that is processed and unnatural for him, they can be allergic to a lot of ingredients in people food.