When dieters feel hungry because of the sudden decrease of fat and cholesterol intake, bile in the gallbladder cannot be discharged. If cholestasis and supersaturation of bile salts coexist, it will promote the formation of stones-inducing gallstones.
Low cholesterol in the body caused by excessive dieting will also affect health. Cholesterol is an indispensable nutrient for human body, and it is also the material basis of human cell membrane, sex hormones and cortisol, which plays an important role in white blood cell activity. In infancy and childhood, lack of cholesterol will affect intellectual development; In youth, long-term low cholesterol diet will not only cause immune cell dysfunction, but also cause chronic refractory anemia. Studies have shown that when the blood cholesterol content of elderly women is too low, the mortality rate will increase by four times, which is also an important reason for the increase in the incidence of cancer and coronary heart disease. Low cholesterol can easily lead to cerebral hemorrhagic stroke, because people who lack cholesterol obviously increase the fragility of blood vessels and are prone to rupture and bleeding, especially in the case of high blood pressure. In view of this, obese people who want to lose weight or people who want to keep slim can keep slim as long as they don't over-diet and control their fat intake to about 20% of the total calories.
Excessive dieting makes the body lack nutrition, leading to malnutrition and anemia. Mild people are weak, dull skin, and metabolic disorder in the body, resulting in low basal metabolic rate. In severe cases, it will damage the memory function cells of the brain, leading to slow response and decreased memory.
Excessive dieting makes fat cells scarce and can't convert the raw materials provided by renal cortex into estrogen. Low estrogen level in the body will lead to osteoporosis and increase the probability of fracture.
Excessive dieting can also make hair yellow and fall off, and the skin is dry and dull, which can lead to death in severe cases. It is reported that in 2006, a 23-year-old woman died of complications caused by dieting in a hospital in Sao Paulo on Christmas Eve. This woman has been on a diet since 2003, and her height is 1. 57 meters, weighing only 35 kilograms when he died. It is also reported that in the early morning of New Year's Day, a girl died in a hospital in Rio de Janeiro, Brazil because of dieting, weighing less than 46 kilograms. The reason is that a few months ago, the girl began to lose weight crazily by inducing vomiting, and as a result, she appeared coma and other symptoms.
Excessive dieting can lead to fatty liver. Normal liver fat accounts for about 2%-4% of the total weight of the liver. When the fat accumulation in the liver exceeds 5% of the total weight of the liver, it is fatty liver. This is not completely proportional to whether the body is obese or not. Because, when the human body is hungry for a long time, because the body can't get enough glucose and oxidase for burning various fats, it will mobilize the fat stored in other parts of the body, protein, and convert it into glucose. These fats and protein will be converted into heat through the liver, and some of them will be stored in the liver. In addition, lipid metabolism requires lipoproteins, while lipoprotein synthesis requires choline, protein and essential fatty acids. If the intake of these things is insufficient, it will not only fail to synthesize lipoprotein, but also affect the lipid metabolism of the liver, and finally lead to a large amount of fat deposition in the liver, thus forming fatty liver. Furthermore, dieting will lead to insufficient intake of sugar, fat, protein, minerals and cellulose. In this case, the body converts sugar and protein into fat and accumulates it in the liver.
Anorexia caused by excessive dieting is becoming one of the five new diseases in the world. According to Xinhua News Agency, in June 2006, Ana Carolina, a 2 1 year-old Brazilian female model, died of anorexia, and another 2 1 year-old Brazilian woman died of anorexia and complications caused by taking medicine to lose weight.
Safe and healthy ways to lose weight are:
1, learn to eat smart.
2. Master the calculation method of daily calorie consumption and the energy supply of various foods, control calorie intake and choose exercise reasonably. Control the intensity and amount of exercise so that the consumption of dry intake is in a negative balance.
Shut your mouth and spread your legs. If you lose less than 1% of your own weight in a week, you can lose the most fat and minimize muscle loss.