Bright Side

Ordinary Foods That Can Harm Your Pet


Our pets learn things about the world through taste and smell. But the foods that may look harmless to us can actually turn out to be toxic.

Bright Side has collected ordinary foods that can have a bad influence on the health of your pets.

Onion and garlic

Vegetables that are onion-like (garlic, leeks, wood garlic) contain propyl disulfide that destroys the red blood cells causing anemia. In severe cases, anemia leads to serious damage to the internal organs.

The symptoms are nausea, vomiting, diarrhea, apathy, abdominal pain, and an increased heart rate. The symptoms may appear within several days.


Lilies are beautiful flowers. But they are deadly to animals. Some lilies can have a very strong nephrotoxic effect if they get into the digestive system. The elements that are in lilies are toxic for kidneys.

The main sign of lily poisoning is a loss of appetite, vomiting, excessive urinating, and increased salivation.

Grapes and raisins

Just 0.5 oz of grapes can poison a 10-lb dog! They have a very negative effect on animal kidneys. If a person already has health issues, grapes can cause kidney failure. Healthy animals may have diarrhea, apathy, a loss of appetite, and vomiting spells.

Coffee and chocolate

Coffee and chocolate contain substances dangerous for cats and dogs. They can cause vomiting even in very small amounts. Dark chocolate contains more dangerous substances than milk chocolate and the poisoning effect is stronger.

Caffeine may lead to excessive urinating, dehydration, arrhythmia, problems with the pancreas, and high blood pressure.

Tubular bones

Tubular bones are not poisonous but they can still cause a lot of health problems. They turn into small shards when dogs bite them and they can damage the intestines or get stuck in the throat.

When they get inside the body, they can cut the stomach or the intestine. This may lead to peritonitis which is extremely dangerous.


Unlike green apples, red ones can cause an allergic reaction or itching in dogs. But it's not the apples that are dangerous, it's the seeds. The seeds of apples, cherries, and apricots contain cyanide. In small doses, it's safe for humans but very dangerous for animals. Vomiting, diarrhea, and dehydration are the first signs of poisoning. Take your pet to the doctor immediately if they ingest these seeds.


Only unripe tomatoes can be dangerous for humans. All tomatoes are dangerous for animals. Make sure your pets don't eat foliage — that's toxic too. One tomato per week is a safe dose for a dog that eats natural foods.

Tomatoes contain solanine that causes red blood cells to break down.

Raw eggs

Raw eggs are bad for humans too. Everyone knows about salmonellosis. For pets, raw eggs are just as dangerous as they are for people. Besides, egg whites contain avidin that can disrupt the metabolism of vitamin B.


Avocados contain persin, a fungicidal toxin. Only the pit is toxic for people, but the entire fruit is dangerous for cats and dogs. Persin causes gastrointestinal problems, breathing problems and heart issues.

Ice cream

Ice cream contains a lot of milk and sugar. Most adult animals are lactose intolerant. As a result, they have diarrhea, vomiting, and gastrointestinal problems. Sugar may cause dental problems.

Take care of your pets and their health! If your pet gets poisoned, take them to the vet immediately and don't try to treat them on your own.

Which of these foods surprised you the most? Tell us in the comment section below!

Preview photo credit shutterstock, shutterstock