Salt refers to sea salt, well salt, mineral salt, lake salt and earth salt from different sources. Their main component is sodium chloride, and the state stipulates that the sodium chloride content of well salt and mineral salt shall not be less than 95%. Salt contains barium salt, chloride, magnesium, lead, arsenic, zinc, sulfate and other impurities. We stipulate that the content of barium should not exceed 20 mg/kg. Too much magnesium and calcium in salt will make it bitter.
Pay attention to avoid high temperature in salt, and avoid putting iodized salt at high temperature when cooking soup. The edible rate of iodized salt in cooking and frying is only 10%, and the intermediate edible rate is 60%. The edible rate of iodized salt during cooking is 90%; The edible rate of cold iodized salt can reach 100%. In addition, if iodized salt is exposed to sunlight and air for a long time, iodine is easily volatilized.
Infant diet principle
During the growth and development, children have a great demand for nutrients, and the demand for energy, protein, fat, minerals and vitamins is about 50% of that of adults, among which the demand for protein is 40-50g per day and the demand for fat is 35-40g per day. However, parents often let them eat ordinary family meals too early.
Children must have a balanced diet and proper nutrition ratio. The supply ratio of protein, fat and carbohydrate should be 1: 1.2: 4. After weaning, if children are only given rice porridge, steamed bread, bread, noodles, soft rice and vegetable soup, protein and fat will be in short supply; If only fish, meat, eggs and milk are given more, the supply of carbohydrates is insufficient, and the energy demand is often unable to be guaranteed.
Refer to the above content: People's Network-Three Principles of Baby Diet Control