What s the harm of adding sugar to pure milk?

Drinking milk should be sweetened Some people like to add sugar when drinking milk, we say, it is okay to drink milk with sugar, but it is best not to add it at high temperatures, because sugar will have a chemical reaction with the lysine in milk at high temperatures, producing a new substance - fructose-based amino acids, which are not absorbed by the human body, but harmful to human health. The correct way to do this is to add sugar when the milk is cold, or to add it after the milk is boiled and cooled to room temperature. In addition, the added sugar should not be too much, and the ratio of 5%-8% is more appropriate. Oh.

Recently, there have been many reports that sugar should not be added when drinking milk, and adding sugar will affect the digestion and absorption of milk. But traditionally, Chinese consumers like to drink sweetened milk, so is it good or bad to add sugar? With this question, the reporter interviewed Associate Professor Liu Juying, director of the Nutrition Department of Xiangya Hospital, who believes that milk with sugar or without sugar can be chosen according to personal preferences and does not need to be contraindicated.

Studies have shown that adding sugar can affect the absorption of milk because sugar breaks down in the body to form acids, which neutralize with the calcium in milk. Director Liu said that in fact, the vast majority of milk powder products themselves are added with sugar, and there have been no reports of indigestion caused by added sugar in China. Each 100ml of milk contains 68 calories, and the addition of sugar can properly supplement human body calories.

For newborn babies and special groups who need to supplement high energy, milk is added to sugar, and the nutrition of energy is more reasonable.

In addition, Director Liu said that the human stomach itself produces acid, so the decomposition of sugar into acid in the human body will neutralize with the calcium in milk, which is completely untenable.

There are also studies that suggest that sugar should not be added when boiling milk, because milk and sugar will form a substance that cannot be absorbed by the human body at high temperatures, which is not good for health. Director Liu pointed out that in fact, at high temperatures, the speed of reaction between lactose and lysine contained in milk is higher than that of sucrose and lysine, which is called "Maillard reaction", which is the same as browning of bread crusts, although this browning reaction causes a small amount of lysine loss, but it is completely harmless to the human body.

Finally, Director Liu emphasized that only some people who are malabsorbed and intolerant to sugar, that is, those who are prone to diarrhea after eating sugar, should try to avoid adding sugar to milk.

The above is excerpted from the Internet.

Most of the reasons for saying that milk and sugar are harmful when heated together is that the lysine contained in milk can react with fructose under heating conditions to form toxic fructose-based lysine, which is harmful to the human body. Therefore, do not add sugar to fresh milk when boiling, and it is best to wait until the boiled milk is cooled a little before adding sugar.

In addition, milk should not be boiled for a long time, and it should not be boiled, otherwise it is easy to produce caramel, which has the risk of causing cancer.

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Problem description: Does drinking milk with sugar destroy its own nutrition? Can you gain weight by drinking sweetened milk at night? Is it really OK to drink milk at night**?

Analysis: 1. It is better not to add sugar, because the sugar is decomposed in the human body to form acid, which will be neutralized with the Yunyan Zen calcium in the milk.

If you want to add, it's best to have sucrose. After sucrose enters the digestive tract and is broken down by digestive juices, it becomes glucose and is absorbed by the body. Some parents buy glucose specifically for their children,2.

It is not good to drink sweetened sugar at night, but sucrose is better than granulated sugar, which can reduce the chance of gaining weight.

3。Drinking milk at night will improve the quality of sleep, as for the dust**, I haven't heard of it, **you have to eat less and exercise more!

1.Calm and calm the nerves.

Italian researchers have found that milk has a calming effect because it contains an ingredient that can inhibit nerve excitability. Avalone advises that when you're upset, go for a big glass of milk to calm your nerves. Drinking a glass of milk before bed promotes sleep.

2.Inhibits tumors.

Milk and dairy cheese contain a substance of CLA, which can effectively destroy free radicals in the human body that are carcinogenic and dangerous, and can quickly bind to cell membranes, so that cells are in a state of defense against the invasion of carcinogens, thus playing a role in preventing cancer. Moreover, the calcium contained in milk can effectively destroy carcinogens in the human intestines, so that they can be decomposed and changed into non-carcinogens, and excreted from the body. Vitamin A, vitamin B2, vitamin D, etc. contained in milk are harmful to stomach and colon cancer.

All have a certain preventive effect.

3.Promote brain development in young children.

Milk is the only food that mammals rely on to survive and develop after birth, and it contains all the nutrients necessary for the development of their young.

4.Beauty and beauty.

The whey in milk has an anti-wrinkle effect on the face and keeps it smooth and moisturized.

5.Comprehensive nutrition.

It can keep the arterial blood vessels stable under high pressure and reduce the risk of stroke; It can greatly improve the work efficiency of the brain; It can strengthen bones and teeth and reduce the occurrence of bone atrophy; Allows wounds to heal faster.

Milk is sweetened to improve the taste and correct the defect of low sugar content of milk, but not too much. Because too sweet will reduce the baby's absorption of calcium in milk and weaken the nutritional value of milk, it is generally enough to add 5-8 grams of sugar per 100 ml of fresh milk. In addition, put sugar in milk, put white sugar, not brown sugar, because the protein in milk will gel or precipitate when it encounters acid and alkali.

Brown sugar has a coarser texture and contains more non-sugar substances, including a certain amount of oxalic acid and malic acid. If brown sugar is added to milk, when the organic acid reaches a certain content, the milk will be denatured and precipitated. Brown sugar has a coarser texture and contains more non-sugar substances, including a certain amount of oxalic acid and malic acid.

If brown sugar is added to milk, when the organic acid reaches a certain content, the milk will be denatured and precipitated, and it will be inedible.

Supplement: In addition, milk and sugar cannot be heated together, because the lysine and fructose in milk will form a toxic substance - fructosyl lysine at high temperatures. This substance cannot be digested and absorbed by the human body and can be harmful to the human body. If you want to add sugar, it's best to wait until the milk is boiling before adding sugar.

Nothing good. Milk is very nutritious, generally without sugar, the human body will absorb more comprehensive nutrients, and the addition of sugar will affect the absorption of calcium. In addition, it is especially important to note that when milk is heated, if white sugar is added, the lysine in the milk will react with fructose to form toxic fratomosyl lysine, which is harmful to human health.

Even if you want to add sugar, don't do it in the process of heating, you might as well wait until the milk is slightly cooler after cooking, so that the sugar will not affect the health of the human body.

Of course you can, pure milk doesn't taste good.

After heating, lysine and fructose form fructose lysine, which is not absorbed by the human body and can also be harmful to health.

Milk has added sugar and has no nutritional effect. Milk itself contains sugar, and besides, these are ordinary foods, without any special ingredients, and man is an omnivore, and in the long process of evolution, he has fully adapted to this omnivorous habit.

It is recommended to add honey to milk, which is better than sugar.

Sugar can be added, but there are two things to be aware of.

1. Milk contains lysine Adding sugar to heated or boiled milk will make lysine react with sugar in some way, so the addition of sugar should be carried out after the milk is not hot or the temperature is cooled.

2. The amount of sugar added should not be too much, too much sugar intake is not good for teeth, so pay attention to the amount added.

3. Target objects: children can add a small amount of white sugar and brown sugar (250 ml with a small tablespoon of sugar, the purpose is to improve the taste, sugar can not be eaten as a staple food); Adults, the elderly, can be drunk without sugar; If you are lactose intolerant, do not consume too much at one time to avoid abdominal pain, bloating, diarrhea (yogurt can also be used instead).

After milk is added to sugar, the lyshelic acid contained in it and the fructose in the sugar form fructosyllysine after heating, which can not only not be absorbed by the human body, but also endanger human health. In addition, sugar is an acidic substance, and calcium in milk is an alkaline substance, and the meeting of the two will reduce the effective content of calcium and affect the nutritional value of milk.