Stinky tofu is rich in plant-based lactic acid bacteria, which has a very good effect on regulating the intestinal tract and stomach. Eating stinky tofu also has a positive effect on the prevention of Alzheimer's disease. Once stinky tofu is made, the most significant change in its nutritional composition is the synthesis of a large amount of vitamin B12. 10 micrograms of vitamin B12 can be found in every 100 grams of stinky tofu. Lack of vitamin B12 can accelerate the aging process of the brain, thus inducing Alzheimer's disease. In addition to animal food, such as meat, eggs, milk, fish, shrimp contain more vitamin B12, fermented soybean products can also produce a lot of vitamin B12, especially stinky tofu content is higher. Category：Other Suitable for people：Preventing Alzheimer's disease, with good intestinal regulation and stomachic effect. Unsuitable for people: not suitable for children. Selection of appropriate: through the "one look, two smell three break" method to judge: first of all, look at the stinky tofu water is black like ink, if too black is not normal; second smell the surface of the tofu is pungent taste, if pungent is to join the ammonia; in addition, open the tofu to take a look at the inside of the whiteness, if the color difference between the quality of the large is not pass. Eating stinky tofu is also a discipline, can be careful oh. Selection taboo: the color is too black, ammonia taste, inside the dye yellow, or black should not be purchased. Cooking is appropriate: choose the best soybeans into tofu, and then the tofu immersed in asparagus, mushrooms, wine, Liuyang tempeh brine soaked through, the surface will give birth to white hairs, the color becomes gray. At first, it smells bad. Fry it slowly in a frying pan until the color turns black and the surface swells, then it can be fished out. Cooking taboo: no. Eating advisable: you can eat steamed buns and cakes and other pasta side dishes with food to eat. Food taboos: should not be eaten more. Storage: mostly for the purchase of fried finished products, ready to eat.