Posted on November 20 2020

Many of the foods that humans consume are not suitable for dogs, some can cause serious health problems, and even death.

The most suitable food for a balanced and complete diet for a dog is feed. For this reason, it is necessary to avoid rewarding them in their daily intake with foods typical of a homemade meal or with sweets - whose level of toxicity can even cause death -. Sometimes, it is not that aliments are not healthy themselves, but that we introduce them into their diet in an unbalanced way. Other times we cannot avoid the temptation to offer them treats that are not suitable for them - like bones - or that can even be lethally toxic - like chocolate or jelly beans -.

In any case, if poisoning is suspected, go to the vet as soon as possible; being fast can prevent serious health complications.

Next, find out which are the prohibited foods for dogs and eliminate them permanently from their diet. In addition, in case of doubt, we advise you to consult with your veterinarian, who will help you draw up an even more complete and personalized list, taking into account the medical history and many other important details about your dog's state of health.


    We start the list of prohibited food for dogs with a classic undoubtedly food that we should completely exclude from the dog's diet since it is a very toxic food, onion. It can lead to severe anemia.

    You should not worry if your dog has accidentally eaten a small dose of onion, however, continuous ingestion causes gastrointestinal problems. Symptoms of onion poisoning usually go unnoticed, but we may notice vomiting, weakness and a change in the color of the dog's mucosa.


      Coffee, tea and chocolate have in common methylxanthine - a substance found in certain vegetables -, which acts directly on the dog's central nervous system.

      In coffee we find caffeine, in tea theophylline and in chocolate theobromine, all of them toxic substances if the dog ingests them in large quantities.

      Xanthines, in addition to affecting the central nervous system of the dog, can impair the functioning of the kidneys and the cardiovascular system. Although there are dogs more sensitive than others to methylxanthine, the truth is that 100 grams of dark chocolate in a medium-sized dog can be very harmful. It is one of the most serious toxic dog foods.

      The most common symptoms of methylxanthine poisoning are vomiting, diarrhea, incontinence, and tremors. It is best to induce the dog to vomit within two hours of ingesting the food.


      Avocado is undoubtedly one of the forbidden vegetables for dogs, due to a fungicidal toxin derived from fatty acids. Its level of toxicity is mild in dogs, however, in other animals it can cause serious symptoms.

      This toxin is only found in the bone and the leaves of the plant, but not in the meat of the vegetable - the green part of the avocado -. If the dog consumes it, we can observe vomiting, diarrhea, lack of stool production and, in the most severe cases, the development of pancreatitis - inflammation of the pancreas -. The greatest risk of consuming avocado occurs due to obstruction of the bone in the esophagus.


        The same as the onions, garlic contains allicin, which could also cause anemia when consumed regularly and excessively. It is another of the prohibited foods for dogs. However, unlike onion, garlic has been the subject of study and potent antibiotic, antifungal, antiparasitic and potentiating effects on the dog's immune and cardiovascular system have been discovered.

        Although it is a food that is best avoided, especially in dogs that suffer from digestive, immune or allergy problems, the consequences or benefits of consuming this product can vary greatly depending on the dog itself - the genetics, the dose the dog ingests, etc. -. Garlic poisoning has the same symptoms as onion poisoning.


          Many people who make homemade diets for dogs use salt as another condiment, but a high consumption of sodium chloride - salt - can lead to dehydration of the dog, aggravate heart and kidney disease or cause poisoning in it.

          It is important to know that salt is the most used product to induce vomiting in a dog. The symptoms of a salt poisoning would be vomiting, internal bleeding, incoordination, diarrhea, polydipsia and polyuria - constant desire to drink and urinate - shock and seizures. Salt is one of the toxic foods that people - without being aware - sometimes include in the diet for dogs.


            The consumption of Macadamia nuts can cause poisoning in the dog, and there are several studies that show the toxicity of this fruit, whether eaten raw or roasted. Macadamia nuts directly affect the dog's central nervous system and act abruptly 24 hours after ingestion. Clinical symptoms include depression, vomiting, ataxia, tremors, abdominal pain, stiffness, and pale or anemic mucous membranes are easily seen. Although the initial effects are serious, the consumption of Macadamia nuts is not deadly for the dog.

            In conclusion, it is important to know which foods and which diet are suitable for our dog. In this way, if, by accident, our dog ingests any of these foods, we will know what is harmful to him and we can act.

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