Just like humans, lactose intolerance can happen to dogs too. Dogs don’t have the enzymes to break down lactose and it can often cause gastrointestinal problems.

Just like milk, some dogs and cats might not be able to break down fatty acids and sugars.

Avocados contain persin, a harmful substance found on the avocado pit and skin that could harm birds, rabbits and hamsters. The fatty acids could be too much for your animals to take, which could cause them to get stomach problems.

Onions contain a type of chemical compound that could be toxic for certain animals. These chemical compounds could lead to red blood cell damage and your pets might just need a blood transfusion to get better.

Overly salty foods could cause your pets to suffer from dehydration, excessive thirst and even sodium ion poisoning.

Avoid giving your pets nuts that are high in fat and oil. They tend to make some dogs vomit and cause them to have diarrhea.

Raw eggs could contain bacteria like E.coli and Salmonella that could lead to skin problems for your pets.

Dogs have long been known to suffer from liver failure after consuming raisins and grapes and while the reason behind it is unknown, studies suggest that raisins and grapes have a certain level of toxicity that could cause dogs to produce less urine than necessary to push out the toxins.

If you’re stir-frying some beef or chicken while in the kitchen and somehow drop a few pieces, make sure that your dog or cat doesn’t get to it. Under cooked meat could contain bacteria like E.coli and Salmonella that could give your pet food poisoning.

While coconut or coconut oil in small amounts should be fine, large amounts could cause dogs and cats to get diarrhea and loose stools.