Babies start to add complementary foods after six months, but the choice of food can not be arbitrary. Because the baby’s digestive system is very young, the food is very picky, some foods can not appear on the baby’s table for the time being. Let’s see what foods are “blacklisted” in complementary foods! The staple foods cereals, starchy foods, easy to digest and absorb, and not easy to cause allergies, many parents to add baby supplemental food preferred rice flour, porridge and other cereals, starchy foods, which is correct. But parents who pay too much attention to nutrition often make the mistake of “too much is not urgent” and prefer to choose fine cereals, but in fact fine cereals can be damaged by vitamins. If the intake of B vitamins is reduced, it will affect the development of the baby’s nervous system: and chromium deficiency will affect the development of vision and become a major cause of myopia. Egg whites The protein molecules in egg whites are small and can sometimes enter the baby’s bloodstream directly through the intestinal wall, causing the baby’s organism to have an allergic reaction to the foreign protein molecules, leading to eczema, hives and other diseases. Egg whites should not be eaten until the baby is one year old. Fish with high mercury content Mercury accumulates in organisms within the food chain, especially fish, mainly in the organic form of methylmercury, which may affect the human nervous system, with pregnant women, fetuses and infants being more susceptible. When choosing fish, avoid larger fish or other fish with high mercury levels, including shark, swordfish, sailfish, catfish, tilapia, alfonsino and tuna, especially bigeye tuna and bluefin tuna. Seafood Crab, shrimp and other shelled seafood can cause allergic symptoms in infants and are also not recommended to be fed before the age of 1 year. Vegetables containing large amounts of oxalic acid Spinach, leeks, amaranth and other vegetables contain large amounts of oxalic acid, which is not easily absorbed in the body, and can affect the absorption of calcium in food, which can lead to poor bone and tooth development in children. Beans Beans contain factors that can cause goiter, and babies are more susceptible to damage when they are growing and developing. In addition, beans are difficult to cook thoroughly and can cause allergic and toxic reactions. Vegetables that are not easily digested Babies’ digestive functions are not fully developed, so it is best to wait until they are older to feed them vegetables such as bamboo shoots and burdock, and not to feed them stalks with too much fiber. Mangoes Mangoes contain some chemicals, and immature mangoes also contain aldehydes, which have a certain irritating effect on the mucous membrane of the skin and cause contact dermatitis of the mouth and lips. The pineapple contains a variety of active substances such as pineapple protease, which has a certain stimulating effect on the human skin vessels, and some people soon develop itchy skin and numbness in the mouth and tongue of the extremities after consumption. Fruits with hair Fruits with fluffy surfaces (such as peach, kiwi fruit, etc.) contain a large number of macromolecular substances, and babies and children with poor gastrointestinal dialysis are unable to digest these substances, which can easily cause allergic reactions. Mineral water, pure water The baby’s digestive system is still incompletely developed, poor filtration function, the mineral content of mineral water is too high, easily resulting in increased osmotic pressure, increasing the burden on the kidneys. And long-term consumption of pure water will make children lack of certain minerals, and pure water used in the purification process of some industrial raw materials, may have adverse effects on the liver function of infants and children. Water fountains are prone to secondary pollution and should not be used. Functional drinks Most functional drinks are rich in electrolytes, which can properly replenish the sodium, potassium and other trace elements lost by the body in sweating. However, since babies’ bodies are not fully developed and their metabolism and excretion functions are not sound, too much electrolytes can cause their liver, kidneys and heart to be overloaded, increasing the chances of children suffering from hypertension, arrhythmia, or damage to their liver and kidney functions. Stimulating drinks Coke, coffee, strong tea, etc. contain too much sugar or caffeine and no nutrition, easily cause tooth decay and affect the baby’s sense of taste, and make people excited, will make children restless, and even affect the baby’s biological clock. Seasonings: salsa, tomato sauce, chili sauce, mustard, MSG, or too much sugar and other heavier flavors can easily increase the burden on the baby’s kidneys and interfere with the body’s absorption of other nutrients. Do not eat salt for babies under one year old either. Snacks Strictly speaking, in the primary stage of baby supplementation, should not be given to the baby snacks, especially snacks containing additives and coloring, these things are less nutritious sugar high, and easy to destroy the infant’s sense of taste, causing tooth decay and so on. Especially the popular ginseng foods in the market, such as candy, cookies, milk powder, whey lactose and ginseng royal jelly containing ginseng. Ginseng has the effect of promoting the secretion of sex hormones, and eating such products can lead to precocious puberty.