Habit, illness or just for pleasure?

You have probably heard that your dog eats grass due to nutritional deficiencies, there is something in his diet that is lacking and he seeks to make up for it with grass. 

Dogs are omnivorous animals that, in addition to consuming meat, require certain foliage to obtain enough fiber to allow them to go to the bathroom in peace.

But you have to be careful, since the grass could have chemicals, such as pesticides and repellants that could harm them, and they could even contract bacteria if the grass they ate had traces of excrement from other animals. 

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Although the possibility that it is a dietary deficiency exists, it is not the only explanation available. It is that the eating and general habits of dogs have changed since domestication began. 

Stomach ache

It is assumed that when they have a stomach problem or upset, they eat grass. In fact, it is common for them to vomit afterwards, but experts are not sure if this vomiting is caused by a previous discomfort or just eating grass.

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Veterinary doctor Malcom Weir, explained that studies have shown that less than 25% of dogs vomit after eating grass and only 10% of dogs show any signs of previous disease. This would be, according to the specialist, enough to understand that “it is unlikely that they will resort to that green thing as a form of treatment.”


The life of dogs as pets revolves around what we people do. When we are with them, when we leave them alone, when we go for a walk or play. This is why many pets adopt repetitive behaviors.

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Dr. Weir explains that some dogs may start eating grass out of boredom, as if to have something to do. It might even be a comforting question for dogs that are more anxious. 

For pleasure

You can’t rule out the possibility that your dog actually likes grass. It doesn’t have to be the taste, but the texture or the chew. Imagine that your dog is an expert taster in types of grass. 

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It is nothing new that they consume this type of “vegetables” because similar behaviors have been seen in the history of dogs and other animals of the same family. In fact, according to Weir, analyzes of wolf droppings showed that between 11 and 47% of them consume grass.