The hazards of not eating and losing weight are as follows:

1. Malnutrition

Usually, dieting to lose weight will only eat one kind of food for a long time, such as fruits and vegetables, and little or no meat. Such an unreasonable diet can easily lead to malnutrition. Although diet control can achieve the goal of losing weight, it affects health. The energy of human body mainly comes from fat, protein and carbohydrate, and the foods containing these nutrients are mainly meat and staple food. If you don't eat it at all, protein and carbohydrates will be seriously lacking, and your body's energy will be greatly reduced.

2. Stomach trouble

Another harm of dieting to lose weight is that it will directly hurt our stomachs. Long-term dieting will lead to the decline of gastric motility and endurance. If you don't eat on time, there is no food in your stomach, which will directly stimulate your stomach to produce gastric acid. Over time, gastric vascular sclerosis will occur, causing various stomach diseases such as gastric ulcer.

3. Endocrine disorders

People ensure a reasonable diet of three meals a day to obtain nutrients needed by the human body, such as protein, fat and minerals. Long-term dieting can easily lead to the lack of vitamins and trace elements, slow down the metabolic function of human body, lead to endocrine disorders and seriously affect health.

4. Memory loss

The power of brain operation mainly comes from fat, which can stimulate the brain and accelerate its ability to process information. Excessive dieting will lead to insufficient fat intake and storage, lack of nutrition, serious brain cell damage, and memory will also be affected.

5. Hair loss

People who are too thin have insufficient supply of body fat and protein, and their hair will fall off frequently, and their hair color will gradually lose luster. If you go on a diet too much, your hair will lack enough nutrition. If you lack iron intake, it will turn yellow and dull, which will eventually lead to a lot of hair loss.

Extended data:

method reducing weight

1, change lifestyle

First of all, we should control the diet, limit the total energy intake to 1000- 1500kcal/ day, and reduce the fat intake, which should account for 25%-35% of the total energy, and the diet is rich in fruits, vegetables and dietary fiber; Lean meat and vegetable protein are used as sources of protein. There should be enough high-quality protein in the diet to lose weight. In addition to the necessary nutrition, it is also necessary to supplement the necessary vitamins, minerals and adequate water. We should also change our eating habits and chew slowly when eating, which can slow down the absorption of nutrients and control energy intake. The goal of diet control is to control the monthly weight loss at about 0.5 ~ 1 kg, and lose 7-8% in 6 months. Obese patients had better make a strict diet plan under the guidance of a special dietitian.

During exercise, the utilization of fatty acids and glucose in muscle tissue is greatly increased, so that excess sugar can only be used for energy supply, but not converted into fat storage. At the same time, with the increase of energy consumption, the stored adipose tissue is "mobilized" to burn for energy, and the adipose cells in the body shrink, thus reducing the formation and accumulation of fat. This can achieve the purpose of losing weight. Weight loss exercise should emphasize scientificity, rationality and individualization, and master the appropriate amount and degree of exercise according to its own characteristics.

2. Drug therapy

At present, there are mainly two kinds of drugs commonly used to treat obesity: one is appetite suppressants acting on the center: these drugs, also known as anorexics, reduce the reuptake of serotonin and norepinephrine by affecting the activity of neurotransmitters, thus reducing food intake, suppressing appetite and improving basal metabolic rate to lose weight, such as sibutramine. There is also a lipase inhibitor that acts on the periphery: it can achieve the purpose of losing weight by blocking the absorption of some fat in the diet. For example, orlistat inhibits gastric lipase and pancreas in the gastrointestinal tract, thus reducing the fat absorption by about 30%. Patients who need medication have a body mass index greater than 30kg/m2 and no complications, or have other complications greater than 28kg/m2.

3. Surgical therapy

Diet control, exercise therapy or drug therapy sometimes fail to achieve the ideal weight loss effect. Surgical treatment is the only way to make obese patients get long-term and stable weight loss effect. Gastrointestinal surgery can not only lose weight, but also improve or even cure obesity-related metabolic diseases, especially type 2 diabetes, treat severe obesity, and prevent, slow down or even prevent the occurrence and development of obesity complications.

References:

People's Network-How harmful is dieting to lose weight?

Lose weight-Baidu encyclopedia