Salt is a condiment that we cannot live without in our daily diet, but it is not unsuitable for children who are too young to eat salt too early. Parents should not cook food for their children according to their own tastes, because a diet high in salt can be very harmful to babies. How old can babies eat salt? Babies’ salt needs gradually increase, and the daily amount of salt should be no more than 1 gram for babies under one year old, and the younger the age, the less the amount should be. However, the word “salt” here refers to sodium chloride. Generally, breast milk and formula milk contain sodium Na+, so there is no need to add salt separately for babies within 6 months of age. For babies under 1 year old who start to add supplementary food, there is no need to add extra salt to the supplementary food because the salt present in natural food can meet the needs of babies. 2 years old and above babies gradually eat with adults, should pay attention to the taste of cooking should be lighter. What are the dangers of a high salt diet for babies? 1, high salt diet can reduce oral saliva secretion, lysozyme also correspondingly reduced, conducive to the presence of various bacteria, viruses in the upper respiratory tract. 2, high salt diet due to the osmosis of salt, can kill the normal parasitic flora of the upper respiratory tract, resulting in dysbiosis, leading to morbidity. 3, high salt diet can inhibit the reproduction of oral mucosal epithelial cells and make them lose their ability to resist disease. 4, high salt diet will affect the absorption of zinc in children’s bodies, which will lead to zinc deficiency. 5, high salt diet will increase the burden on the baby’s heart and kidneys. The baby’s kidneys are not well developed enough to permeate too much salt. If too much salt is added to complementary foods, it will increase the burden on the baby’s kidneys and increase the burden on the heart, thus impairing kidney and heart function. Moreover, heavy salt eating habits from childhood are not easy to correct when they grow up, and heavy salt eating habits can easily cause diseases such as hypertension. Adults who eat too much salt are prone to grow spots. Too much salt can make the face dark and yellow, and may lead to freckles on the cheeks. If you consume too much animal fat and protein at the same time, it will affect the normal metabolism of liver and make freckles more conspicuous. It can be seen that freckles tend to fall in love with “salty people”, and women with heavy tastes, whether they cook by themselves or order food outside, like to eat more salt dishes, which will easily lead to more wrinkles in the long run. To want good skin, a more scientific approach is to drink more water to help detoxify the skin, in addition to the daily salt intake should not exceed 6 grams. 2, eat too much salt is easy to swelling in daily life is not difficult to find, there are many obese women’s feet will swell in the afternoon, wearing shoes become tight, in fact, is the body’s salt in play. “Puffiness” is a phenomenon that occurs when excess water is not excreted and accumulates in the body. Some people try to lose weight through sweating or diuresis, but in fact it is also the temporary elimination of swelling, it is difficult to play a fundamental role in fat reduction. 3, eating too much salt can cause cancer Medical doctors generally believe that eating more salt is prone to hypertension, myocardial infarction and cancer and other diseases. The amount of salt eaten per person per day in the city should be reduced from the current 20 grams to 10 grams or even less than 5 grams to reduce the incidence of some diseases. Nearly 50% of middle-aged and elderly people have a daily salt intake that exceeds the threshold of 6 grams proposed by the World Health Organization. Too much salt consumption can easily lead to increased blood volume and increased side pressure on blood vessel walls, leading to hypertension and also to vascular sclerosis. In addition, eating too much salt makes people feel thirsty and need to drink a lot of water to relieve it. Long-term intake of large amounts of salt can lead to body swelling and also increase the burden on the kidneys. How much salt is the most appropriate amount to eat a day? The normal adult daily sodium requirement is 2200mg, the food consumed by adults in China generally contains about 1000mg of sodium in itself, and the sodium required from salt is about 1200mg, therefore, the actual daily food based on the intake of 3g of salt will basically reach the human body’s sodium needs. However, due to dietary habits and taste favorites, our daily salt intake is well above the 3g level. The Chinese Nutrition Society recommends that the intake of salt (including the amount of salt in soy sauce and other foods) for a day for healthy adults is 6 g. With the improvement of living conditions, people gradually realize that the high incidence of hypertension is related to salt, in general, a normal person’s daily intake of 6 g of salt can meet the body’s needs, China’s prevention and control of hypertension can not be delayed, in addition, salt does not only have an impact on the lives of people with hypertension, in 60% of hypertensive patients are salt-sensitive, and up to 1/4 of normal people are salt-sensitive, therefore, it is necessary to control salt intake in healthy people.