Yang deficiency constitution should eat warm food, food with warming yang and dispelling cold, food with high calorie and rich nutrition. It is advisable to eat dog meat, mutton, sparrow meat, seahorse, dried ginger, pepper, cinnamon, litchi, fennel, cistanche deserticola, cordyceps sinensis, ginseng, gecko, roe deer, sheep bone, bullwhip, dog whip, shrimp, mussel, leek, fresh ginger, onion, clove and nutmeg. Avoid eating cold things, all kinds of cold drinks and all kinds of cool fruits. Avoid eating duck meat, rabbit meat, otter meat, wax gourd, duck blood, duck eggs, donkey-hide gelatin, milk, yogurt, soft-shelled turtle, crab, snail, clam meat, persimmon, persimmon, grapefruit, orange, banana, fig, watermelon, green bitter gourd, sweet potato, watermelon, raw lotus root and so on.