My Valentino had terrible dandruff. His vet said it was due to dry skin. She had me add Goat's milk and coconut oil to his diet. His dandruff lessened dramatically after about a month. The amount of coconut oil (solid or liquid) per day should be no more than 1 teaspoon per 10lbs of body weight. Valentino is about 27 lbs. so I give him about 2.5-3 teaspoons a day. I divide the amount in half and add it too his meals. I feed goat milk rarely because it is so high in calories.