India, Nov. 24 -- Several food items can be harmful to dogs even if they are safe for humans. This is because dogs have a different metabolism compared to humans, as per Healthline.com.

Feeding your pet dogs specific food items can be extremely harmful to their overall health. Here is a look at some of these that have been proven toxic to dogs.

Persin, a toxin found in avocados, is completely safe for human consumption but extremely toxic to dogs. People should avoid giving any part of the plant to dogs because it is present in the avocado fruit, pits, leaves, and bark.

These could cause fluid to build up in the dog's chest and lungs. They may face trouble breathing, which could result in oxygen deprivation.

Additionally, fluid can bu...