8 Foods You Should Never Feed to Your Dog

Macadamia nuts contain a toxin that can be harmful to a dog's nervous system. Dr. Zacharias told POPSUGAR that there isn't a ton of information on this specific nut yet, but it's definitely toxic. "Although there are some nuts that are OK to give your dog, it is not recommended to feed them any type of nut since sometimes bags of mixed nuts contain macadamia nuts," she told POPSUGAR. "So to play it safe, it is recommended to avoid all nuts."