Why Do Animals Eat Dirt?

The voluntary consumption of dirt by animals is in fact a very common behavior. The reason for such behavior has various explanations.

In most cases animals, both wild and domestic, will instinctively eat dirt as a form of self supplementation or self-medication.

Often an animal that is seeking out dirt lacks sufficient vitamins and minerals in their diet. As well, the animal may require salt, and more importantly the sodium that is contained in salt. Animals receive the nutrients that they need from the food that they consume. When this source does not provide them with a sufficient amount, they seek vitamins and minerals from other sources. Dirt can provide these essential nutrients and so animals will consume it until they have met their body’s needs.

Beneficial micro-organisms can also be found in dirt. These micro-organisms aid in digestion and are sought after instinctively by animals.

The most common reason that animals consume dirt however is due to its absorbent properties. Certain clays contain absorbent particles which can bind up bacterial toxins, organic acids, certain viruses, and other potentially harmful substances in the gut. These bound toxins can then be removed from the body in waste. These clays are often refined for use as medications or as feed additives for the prevention of digestive problems in livestock.

Other less common reasons that an animal would eat dirt include boredom, habit and diseases that affect mental function.

Please consult a veterinarian for specific advice on your animal and his or her behavior.

Image by normanack