3. Nuts
It is best to keep all nuts away from dogs. All nuts produce oils and fats that can cause diarrhea and vomiting. While all nuts are not toxic to dogs, there are some that are. Never feed your dog pecans, walnuts or macadamia nuts. Macadamia nuts specifically are the most toxic nuts that you can give your dog. When eaten, these nuts can cause a host of health issues which include vomiting, weakness, rise in body temperature, and inability to walk. Avoid macadamia nuts at all costs.