Toxic foods for dogs: let’s find out what they are

Do you know what all the potentially toxic foods are for your dog?

It will be because we usually offer our pet natural foods or because he eats treats that have not been formulated directly for him, it is important to know the toxic foods for dogs. These animals can tolerate a large amount of different foods, but there are also many that can harm them.

In most cases, taking a small amount of these products will not cause any visible effects, but a higher dose can cause indigestion. Do you think that some compounds could even kill him, if you do not perform a gastric lavage in time.

We invite you to discover toxic foods for dogs in this article, so that you can avoid them.

Toxic foods for dogs

Tea, coffee or chocolate, very dangerous toxic foods for dogs

These three foods have in common a compound called methylxanthine , whose main characteristic is that it is a stimulant for the central nervous system. Tea contains theophylline, coffee contains caffeine and chocolate is composed of theobromine.

These substances, in minimal quantities, do not harm the dog’s health, but the lethal dose is not very high. Therefore, if you give a small piece of pure black chocolate to a small dog, you could cause irreversible damage.

Some of the symptoms of food poisoning are seizures, tremors, diarrhea, or incontinence.

Onion and garlic

Garlic ( Allium sativum ) and onion ( Allium cepa ), in addition to belonging to the amaryllidaceae family , can cause haemolytic anemia. This syndrome, unlike the ‘ anemia not hemolytic, such as iron deficiency, is characterized by the destruction of red blood cells, which decreases their concentration in the blood.

If a dog sporadically consumes some garlic or onion, nothing will happen. The problem arises when the dog consumes these foods daily and in large quantities.


Avocado contains a toxic substance for many animals, persin. However, dogs or cats appear to be unaffected by this toxin. The real danger would be the total or partial ingestion of an avocado bone which could cause an obstruction in the digestive tract.

On the other hand, there is a danger that dogs suffer from pancreatitis , due to the high concentration of fat contained in avocados.


Nuts are among the toxic foods for dogs , as well as being potentially lethal if the symptoms of poisoning are not treated.

This occurs 24 hours after ingesting the fruit and can cause ataxias, depression, tremors, seizures, vomiting and abdominal pain, as it directly affects the dog’s central nervous system.


Cherries are the fruit of shrubs and trees of the genus Prunus . These have in common that they are rich in cyanogenic glycosides. All parts of the plant, with the exception of the fruit area around the bone when very ripe, are considered toxic, as they have a high concentration of cyanides.

Cyanide causes cellular oxygen transport, so the symptoms of cherry poisoning are:

  • Dilated pupils.
  • Shortness of breath.
  • Inadequate oxygen levels.
  • Bright red gums.
  • Shock and death.

Cooked bones

Raw bones are a very beneficial food for dogs . In addition to providing high-value nutrients, they prevent the appearance of tartar and even eliminate it. They are also good entertainment for them, which they can spend some time nibbling on.

However, if we offer them cooked bones , they will have lost the natural collagen they contain. This makes them potentially dangerous, as they can chip and stick along the digestive tract, which can cause severe damage, including death of the dog.

Other toxic dog foods

There are many other toxic foods for dogs that could be life threatening, such as:

  • Salt.
  • Alcohol.
  • Mushrooms.
  • Grapes or raisins.
  • Apricots.
  • Raw bread dough.
  • Chili pepper.
  • Sugar.
  • Almonds.
  • Raw potatoes and sweet potatoes.
  • Moldy or rotten spoiled food.
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