Usually around 4 months old, babies can start to add complementary foods. However, many babies who have already added complementary foods have food allergies that worry their mothers. So, what causes baby food allergy? 4 major causes of food allergies in babies 1, add complementary foods do not greedy greedy fast Food allergy is the body’s immune system to a certain food (this food is usually harmless) to produce an abnormal immune response, so that whenever you eat can make you allergic to food, will repeatedly cause skin, respiratory tract, gastrointestinal and even shock and other allergic reactions. Usually, babies in 4 months or so can start to add complementary foods, but this does not mean that babies can let go of their bellies to eat, especially born with allergies, hereditary allergies in the baby to add complementary foods is not to be rushed. 2, picky eating allergy triggered by the child has been able to eat independently, let him as much as possible to contact a variety of natural foods, can reduce the phenomenon of allergies. Nowadays, children are very picky eaters, some do not eat a certain kind of food for many years, the body began to lack of digestive enzymes of this food, then, once occasionally eat this kind of food (such as frozen dumplings in the filling), it may trigger allergies. This is why some children are allergic to spinach, soy, wheat and fish as well. 3, processed foods in the allergy culprits Some children eat instant noodles on the red rash, some eat freshly shredded potatoes no problem, but a canned potato chips on the eyelids puffy, these phenomena make parents confused. In fact, the reason is very simple: the child is not allergic to the food itself, but to flavors, colors, preservatives and other added ingredients. Once your child shows such signs, try to let him eat natural green food, you can avoid most of the signs of allergy. 4, certain fruits and vegetables contain natural toxins There is no denying that allergens can exist in fresh fruits and vegetables. For example, apples, apricots, pears, cherries, peaches, plums and seeds in the core, contains a called “raw cyanoglucoside” allergens, accidental ingestion may be poisoned, while in the pulp, there is no such element. Therefore, it is likely that children are not allergic to apples, but to the apple core, when feeding fresh fruit, be careful to remove the core. Another example is in string beans, red kidney beans and white kidney beans, which contain phytohaemagglutinin that causes allergy. This toxin has the highest concentration when heated up to 80℃ when it will be cooked and uncooked, so it must be cooked and cooked thoroughly before eating. Avoiding food allergies 1. One kind at a time, one week for each kind The best way to add complementary foods is to start with hypoallergenic foods and increase them in a gradual manner. Mothers should only add one kind of complementary food to their babies each time, and at the same time, they should pay close attention to their babies’ reactions. Once there are frequent spitting up, vomiting and diarrhea, or even skin rashes, etc., it is possible that allergy symptoms may occur, and then they should bring them to the doctor for timely examination. If this complementary food in the consumption of 3 to 5 days after no major problems, then the mother can start to add another complementary food, and then observe for a week to see if the baby adapted. Wait until the baby can accept the complementary food is more abundant, can be several kinds of mixed together to eat oh! 2, the first taste of new complementary foods? First a small amount of test all of a sudden to the baby to add a variety of complementary foods, if the baby appeared to be allergic to the symptoms then it is difficult to distinguish the allergens. Therefore, when adding complementary foods, the amount should be small, varieties to a single appropriate, after confirming that there is no allergic reaction, and then add new complementary foods. When giving your baby a new variety of food, it is best to test it in small amounts. Start with 1~2 spoonfuls in the first two days, if the baby digests and absorbs it well, then slowly increase some more, and at the same time, observe the baby well to see if there is any allergic phenomenon. If diarrhea occurs, it is possible that the baby has indigestion, or because of allergies, then you need to stop adding and make a good distinction. If there is undigested food in the stool, it means that the baby is not absorbing the food well and needs to reduce the food intake or make the food smaller; if it is found to be due to food allergy, then the baby should be avoided to eat this food for a long time. At the same time, use positive methods to change the baby’s allergic body, and for them to supplement a comprehensive and balanced nutrition. 3, the first rice flour after the egg yolk, and then come to eat protein As a newly added complementary food, should start from a small amount, to give the baby a process of adaptation, in addition, what to eat first and then what to eat for the prevention of allergies is also very delicate. In the past, complementary foods used to start with egg yolks, but now doctors recommend starting with simple rice flour to prevent allergies. After observing that your baby is digesting well, then add egg yolks to your baby’s diet. After one to two weeks of observation, if the baby’s digestive function is good, then add egg yolk. Although egg whites are easier to digest than yolks, often babies are allergic to egg whites, not yolks, so it is best not to change the order of yolks before egg whites when adding complementary foods. Feeding egg white should wait until the baby is at least 1 year old, and for babies with a family history of allergy, feeding egg yolk can be delayed until after 6 months of age. Add complementary food is best to follow the “first after rice, first vegetable consequences, first meat and then fish, first yolk and then protein” principle, step by step to let the baby accept, not only the baby is more likely to accept changes in taste, more importantly, good absorption and anti-allergy. Generally speaking, 6 months to add rice flour or rice soup, 7-8 months to add grains and roots, and began to try a variety of leafy vegetables and fruit puree, 8 months after you can start to add meat.