But don't start with these amounts. Instead, introduce coconut oil a little at a time in divided doses. Because coconut oil kills harmful bacteria, viruses, parasites, yeasts, and fungi, the burden of removing dead organisms can trigger symptoms of detoxification. Headaches, fatigue, diarrhea, and flu-like symptoms are common in humans who consume too much too fast, and similar symptoms can occur in dogs.

Even in healthy dogs, large amounts of coconut oil can cause diarrhea or greasy stools while the body adjusts. Start with small amounts, such as ½ teaspoon per day for small dogs or puppies and 1 teaspoon for large dogs. Gradually increase the amount every few days. If your dog seems tired or uncomfortable or has diarrhea, reduce the amount temporarily.

Coconut oil isn't the only coconut product that is good for dogs. Fresh or dried coconut is an excellent source of dietary fiber, and dogs enjoy and benefit from the same coconut flakes, coconut flour, coconut cream, coconut milk, shredded coconut, and coconut spreads used by their human companions. Just be sure the products are unsweetened and free from chemical preservatives.

(The excerpt above if from Crazy About Coconut Oil from the Whole Dog Journal)