Many people add sugar when boiling milk, thinking that it can make the sugar melt as soon as possible, but it is very unscientific to put sugar when heating. Because milk contains lysine and sugar contains fructose, these two substances will form a combination-fructosyl lysine at high temperature. This substance can't be digested and absorbed by human body, which destroys the nutritional value of protein. To make matters worse, it may be toxic to human body. Therefore, never put sugar in milk when it is heated. If you want to drink milk with sugar, you can wait until the milk is slightly cold before adding sugar.
2, avoid eating with oranges.
Milk is decomposed in the stomach by pepsin and pancreatin, and then absorbed in the small intestine. If milk is eaten with oranges and other fruits with high fruit acid content, protein in milk will have a complex biochemical reaction with fruit acid and vitamin C, which will affect the digestion and absorption of protein in milk and vitamin C in oranges, resulting in abdominal distension, abdominal pain, diarrhea and other adverse reactions, and eating together will not pay off.
3. Avoid adding chocolate.
Some people like to eat chocolate with milk to get rid of the strange smell in milk, which is unscientific. Milk is rich in protein and calcium. When eating with chocolate, calcium in milk combines with oxalic acid in chocolate to form insoluble calcium oxalate, which can not only be absorbed by people, but also cause hair dryness, diarrhea and calcium deficiency after a long time. Therefore, the time for drinking milk and eating chocolate should be separated, and it is best to eat carbohydrates such as biscuits and bread when drinking milk.
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