By eHow Pets Editor
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Chewing in horses is both frustrating and destructive for the owner and can prove to be dangerous to the health of the horse. Splinters and small pieces of wood can find their way into the horse's teeth, gums, stomach and intestines, causing numerous health issues. The most common cause of chewing is boredom, though nutritional deficiencies may also play a part. No matter the reason, stopping it early is key.