The harm of sugar to the human body, what are the benefits and disadvantages of sugar to the body

It is easy to make people obese and aggravate the reaction of diabetics.

Benefits: The main function of sugar is to provide heat energy. Each gram of glucose is oxidized in the human body to produce 4 kilocalories of energy, and about 70% of the energy required by the human body is provided by sugar. In addition, sugar is an important substance that makes up tissues and protects liver function.

Disadvantages: Long-term high-sugar diet will cause the human internal environment to be unbalanced, and then cause various harms to human health. Because sugar is an acidic substance, eating too much sugar will change the pH of the human blood, showing an acidic constitution, weakening the resistance of human white blood cells to external viruses, and making people susceptible to various diseases.

People who have a long-term sweet tooth are prone to a variety of eye diseases. Experts also suggest that senile cataract is also related to excessive sweets. They surveyed 50 cataract patients and found that 34% of them had a sweet tooth, which they believed was related to glucose metabolism disorders.

Some people like to hold a piece of candy for a few minutes, which is actually a bad habit. Because there is a lactobacillus in the human mouth, which can ferment sugar to produce lactic acid. The longer the sugar is in the mouth, the more lactic acid is produced, and the greater the chance of developing tooth decay.

Sugar, as an essential element of the human body, is really loved and hated

On the one hand, our lives cannot be separated from sugar intake, and if sugar is cut off, it is equivalent to being unable to live with our own lives. At the same time, scientific studies have shown that the intake of sweets will slightly increase the body's sense of comfort and happiness;

But on the other hand, consuming too much sugar will cause many problems Most of the sugar ingested by the human body is fructose, glucose, galactose, etc., these sugars are combined with proteins, and it is inevitable that a glycation reaction will occur, but if further glycation reactions occur to generate ages, the problem of accelerated aging will follow. The dermis of the human body is rich in collagen and elastin, and long-term intake of a large amount of sugar will slowly glyciform collagen and elastin, making it lose its elasticity and accelerate aging.

As one of the three major nutrients of the human body, sugar has an immeasurable and indispensable effect on the human body. 2.Sugar is one of the nutrients of the human body, the first source of energy, and an important component of nerves, bones, corneas, and vitreous; It is an indispensable raw material for the cells of various tissues of the human body, and the only one for the heat energy of the brain nervous system.

Extended Information: Sugars (Compounds).

1. Sugars (compounds).

Carbohydrates are aldehyde or ketone compounds with polyhydroxyl groups (2 or more) that can be hydrolyzed to become one of the two organic compounds. Chemically, because it is composed of carbon, hydrogen, and oxygen, it is similar to the polymerization of "carbon" and "water" in terms of chemical formula, so it is also called carbohydrate.

2. Biological function.

1) Provide energy. Starch in plants and glycogen in animals are both forms of energy storage.

2) The carbon skeleton of material metabolism provides a carbon skeleton for the synthesis of proteins, nucleic acids and lipids.

3) The backbone of the cell. Cellulose, hemicellulose, lignin are the main components of plant cell walls, and peptidoglycan is the main components of prokaryotic cell walls.

4) Cell-to-cell recognition and biomolecule-to-molecule recognition. The oligosaccharide chains of glycoproteins on the surface of the cell membrane are involved in cell-to-cell recognition. Some cells contain sugar molecules or oligosaccharide chains on the surface of their cell membranes that form the antenna of the cell and are involved in cellular communication.

The ABO blood group determinant on the surface of red blood cells contains fucose.

The effect of sugar on the human body:

Sugar is an essential nutrient for the human body. Sugars are composed of carbon, hydrogen, and oxygen, and are similar to the polymerization of "carbon" and "water" in terms of chemical formula, so they are called carbohydrates. Sugar is an essential nutrient for the human body, which is immediately converted into carbohydrates after being absorbed by the body to provide the body with energy.

Moderate intake and good timing of eating sugar are beneficial to the human body.

1. If you want to sweat a lot and consume physical strength when taking a bath, you need to replenish water and calories, and eating sugar can prevent collapse.

2. When exercising, it is necessary to consume caloric energy, and sugar can provide caloric energy faster than other foods.

3. When fatigue and hunger, sugar can be quickly absorbed to raise blood sugar. When you are dizzy and nauseous, eating some sugar can raise blood sugar to stabilize your mood and help you return to normal.

4. Eating some sugar food after meals can make people feel uplifted and energetic when studying and working.

The benefits of sugar to the human body include providing energy for the body and protecting liver function, and the disadvantages of sugar to the human body may lead to obesity, osteoporosis, and reduced vision. The details are as follows:

1. Benefits: Sugar is a kind of energy-producing nutrient that can provide energy for the body and maintain the normal functioning of the body. Sugar can replenish energy for the human body, because plant starch and animal glycogen are both forms of energy storage, so the human body can replenish energy for the human body after eating sugar in moderation.

It can also maintain blood sugar, because sugar is easy to be digested and absorbed by the human body, blood sugar can increase after 3 minutes of eating sugar, so it is suitable for people with low blood sugar. Sugar also plays an important role in protecting liver function, moderate sugar consumption can improve the body's absorption of calcium, and sugar can provide nutrients needed for metabolism in the process of liver detoxification and metabolism.

2. Disadvantages: Eating too much sugar will increase the sugar in the body, so that the sugar in the blood will also increase, so that blood pressure and blood lipids will increase rapidly, increasing the incidence of hypertension and hyperlipidemia. Eating sweets will cause a rapid increase in body fat, and if you eat sweets for a long time and do not exercise, your body will become obese.

If you eat too much sugar, it will also reduce vitamin B1 in the body, which will affect the secretion of rhodopsin, reduce vision, and be harmful to the eyes.

Sugars, fats, and proteins are the most stored energy substances in the body, and their energy supply status during exercise and with the change of exercise intensity and duration of exercise are constantly adjusted to meet the needs of exercise. During exercise, sugar energy plays an important role in the metabolism of the three major energy substances.

Benefits: (1) Provide the energy needed by the body.

For normal physiological activities, 50%-70% of the energy required by the human body comes from the oxidation process of sugar. During long-term high-intensity exercise, sugar energy can reach about 95% of the total energy consumption. Therefore, sugar is an important substance in the body.

Energy is released on average per gram of sugar completely oxidized. The whole body sugar produces about 8000kJ of energy. In addition, when blood sugar levels drop, the brain is the first to be affected, and its functions are affected, causing fatigue.

2) Sugar oxidation can promote the decomposition of fat for energy.

In the absence of sugar, the oxidative energy supply of fats will be affected. The mechanism is that the acetyl-CoA produced by the oxidation of fatty acids must be combined with oxaloacetate produced by the carboxylation branch of pyruvate in sugar oxidation before it can enter the tricarboxylic acid cycle and be completely oxidized.

3) Sugar oxidation can save the use of protein.

Under normal physiological conditions, protein is mainly used to maintain and repair tissues and meet the needs of body growth, and has a small role in energy supply. However, during prolonged exercise, when sugar is consumed in large quantities and fat energy supply is limited by low sugar stores, the proportion of protein energy supply increases. The decomposition of a large amount of protein for energy will increase the burden on the liver and kidneys, which will have a negative impact on exercise.

Harm: Sugar accumulation in the body can be converted into fat.

The benefit of sugar to the human body is that it can be converted into glucose and fructose that are easily absorbed by the body in the gastrointestinal tract, and the disadvantage of sugar is that it can cause tooth decay and obesity, so it is not recommended to consume it in excess. In addition, part of the glucose in the sugar will follow the blood circulation to every part of the body, and then break down in the cells to produce carbon dioxide and water, which provides the energy needed for muscle activity, brain tissue function, and maintains normal body temperature, while the other part of the sugar will be stored by some tissues such as muscles and liver.