Causes of Obesity

Written by Tang Zhuo
Endocrinology
Updated on September 19, 2024
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Obesity, also known as adiposis, is a chronic metabolic disease caused by excessive accumulation or abnormal distribution of fat in the body. It results from the interaction of multiple factors including genetic and environmental factors that cause fat accumulation. Primary obesity, also known as simple obesity, is the most common type and is mainly caused by poor dietary habits, such as excessive food intake, particularly excessive fats, and a sedentary lifestyle. There is also secondary obesity, which is generally caused by diseases of the endocrine system. Hormonal treatments for allergic diseases and rheumatic diseases can also lead to secondary obesity.

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Written by Tang Zhuo
Endocrinology
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Causes of Obesity

Obesity, also known as adiposis, is a chronic metabolic disease caused by excessive accumulation or abnormal distribution of fat in the body. It results from the interaction of multiple factors including genetic and environmental factors that cause fat accumulation. Primary obesity, also known as simple obesity, is the most common type and is mainly caused by poor dietary habits, such as excessive food intake, particularly excessive fats, and a sedentary lifestyle. There is also secondary obesity, which is generally caused by diseases of the endocrine system. Hormonal treatments for allergic diseases and rheumatic diseases can also lead to secondary obesity.

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Written by Tang Zhuo
Endocrinology
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Obesity is classified as what type of disease?

Obesity, also known as adiposis, is a chronic metabolic disease caused by excessive accumulation or abnormal distribution of body fat. Patients with this type of obesity often have excessive abdominal fat accumulation. Moreover, obesity is closely related to the occurrence of hypertension, coronary heart disease, type 2 diabetes, dyslipidemia, sleep apnea, cholecystitis, gallstones, osteoarticular disease, certain cancers, and various cardiovascular diseases.

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Written by Zhang Jun Jun
Endocrinology
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Can people with obesity eat pork?

Patients with obesity are advised to primarily consume lean pork, as it generally contains more protein. If the pork is fatty, it has a higher fat content. Since obesity is a disease of nutritional excess, it is necessary to strictly control the total calorie intake, including carbohydrates, proteins, and fats — particularly the intake of carbohydrates and fats, which are strictly limited. However, patients with obesity can eat lean pork, as it contains high-quality protein which is beneficial for their physical health. Thus, people with obesity can eat pork, but they should focus on consuming lean cuts.

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Written by Tang Zhuo
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Obesity weight loss methods

The treatment of obesity involves two main components. One is reducing calorie intake and the other is increasing calorie consumption, mainly emphasizing a comprehensive treatment based primarily on diet and exercise. Secondly, medications or surgical treatments can be utilized. In the case of secondary obesity, it is important to treat the underlying cause. So, what is behavioral therapy? It involves educating patients and their families about obesity and its risks, enabling them to cooperate with the treatment, adopt a healthy lifestyle, change dietary and exercise habits, and maintain these changes consciently in the long term as the foremost and most important measures in the treatment of obesity. Thirdly, controlling diet and increasing physical activity are crucial. Individuals with mild obesity can control their total food intake with a low-calorie, low-fat diet. For those with moderate to severe obesity, total calorie intake should be strictly controlled, with women limited to 1200-1500 kcal per day and men to 1500-1800 kcal per day. Following this standard, a weight loss of 1-2 pounds per week can be achieved. Furthermore, for severe obesity, medications can be used to reduce weight, which can then be maintained. If necessary, surgical procedures such as jejunoileal bypass or biliopancreatic diversion surgery can be considered.

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Written by Tang Zhuo
Endocrinology
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The Harms of Obesity

Mild to moderate primary obesity might not present with noticeable symptoms. However, individuals with severe obesity may experience heat intolerance, reduced physical activity capability, mild shortness of breath during activities, and snoring during sleep. The likelihood of developing coronary heart disease and hypertension is significantly higher in obese individuals compared to those who are not obese. Obesity leads to reduced lung capacity and decreased pulmonary compliance, which can cause various pulmonary functional abnormalities. For instance, obese hypoventilation syndrome, clinically characterized by sleepiness, obesity, and alveolar hypoventilation, often accompanies obstructive sleep apnea. Severe cases of obesity may lead to pulmonary heart syndrome. Obese individuals often experience metabolic disorders of lipids and carbohydrates; lipid metabolism disorders can lead to hypertriglyceridemia and hypercholesterolemia, while carbohydrate metabolism disorders are marked by glucose intolerance and diabetes. Moreover, obese individuals are more prone to arthritis, gout, and osteoporosis. Sexual dysfunction is common in obese individuals, with some obese men developing gynecomastia; obese girls tend to have an earlier onset of menstruation, while adult women with obesity often experience menstrual disorders, and in severe cases, amenorrhea. The incidence of polycystic ovary syndrome is also significantly higher in obese women compared to non-obese women.