Rather than retype it all, I copied the following summary from ezine: Did You Know About Coconut Oil For Dogs?
Added to the diet coconut oil can help slim overweight dogs, condition dry shabby-looking coats, offers some relief to painful arthritis or ligament problems, can help balance the thyroid, gives dogs a natural source of energy and helps keep dogs smelling better. My favorite use of coconut oil - improves digestion and nutrient absorption.
People have found with topical use their dogs ear infections improve, as do flea allergies, contact dermatitis, and other skin irritations. It's also been shown to help get rid of moles, heal sores and condition the dog's dry cracked feet pads.
The oil can be applied to sores. It is slow absorbing so try to keep the dog occupied for several minutes after applying it. Try it on hot spots, sore foot pads, minor bites or even to clean ears.
Coconut oil will deodorize anything it touches and will make your dog smell better when it's fed to him.
Dogs love the taste of coconut and many will lick it off a spoon. It can be feed alone or mixed in dog food. Start very slow. Work up to a teaspoon a day for each 20 pounds of body weight. If you notice greasy stools cut back the oil for a few days. The oil will help detox the system so it's important to go slow and over several weeks work up to the full doseage.