5. Avocado
The dangerous toxin to dogs in avocado is persin. It can be found in the edible fruit as well as the seed (the pit), leaves, and bark of the avocado. Along with its high-fat content, ingesting avocados can cause vomiting and diarrhea. In addition to not feeding your dog avocados, be careful that they don’t find them on the ground if you live in an area where they grow.
Also, because of its size and density, the avocado seed can be dangerous if swallowed by a dog. Small enough to swallow for some dogs but often too big to pass through its digestive system, the avocado seed can cause an obstruction in the stomach or intestines, which can require emergency surgery or be fatal.
