A systematic overview of diverse weight loss methods: a comparative analysis of exercise, diet, medication, surgery, and traditional Chinese medicine as supplementary methods.

With social development and improved living standards, the obese population is gradually increasing, and weight loss methods are becoming more diverse. Currently, widely researched and applied weight loss methods mainly include exercise, dieting, medication, surgery, traditional Chinese medicine, acupuncture, and traditional Chinese massage.

The core value of exercise for weight loss lies in regulating the body's metabolic function through physical exercise, enhancing fat consumption, and promoting the oxidative breakdown of fat. During exercise, a large number of muscles are involved, requiring the expenditure of a significant amount of calories. The calories burned during exercise are primarily related to the amount of exercise, which is composed of both intensity and duration. For weight loss, it is essential to emphasize low-to-moderate intensity, long-duration aerobic exercise to maximize fat burning. If the exercise intensity is too high, skeletal muscles will utilize anaerobic metabolism more for energy; although the amount of exercise may seem large, the weight loss effect will be poor. Therefore, more exercise does not necessarily mean better results for weight loss. Only by appropriately controlling the intensity and ensuring a sufficiently long duration can optimal weight loss be achieved.

Dieting for weight loss involves restricting calorie intake, reducing the conversion of excess calories into fat, thus creating a negative energy balance between calorie intake and expenditure, and maintaining this balance for a considerable period to achieve weight control and weight loss. Generally, dieting can be divided into fasting therapy, ultra-low-energy diet therapy, and low-energy diet therapy. The core of this method lies in disrupting the existing energy balance, forcing the body to utilize stored energy.

Drug-based weight loss primarily works by suppressing appetite, reducing the absorption of nutrients in the digestive tract, and increasing the breakdown of body fat. Common weight loss drugs typically fall into several categories: first, drugs that affect appetite by acting on the central nervous system; second, drugs that reduce food digestion and absorption by acting on the gastrointestinal system; third, drugs that promote fat burning and increase thermogenesis; and fourth, various hormonal drugs. While drug-based weight loss does not require excessive physical exertion, its intervention in the human nervous and metabolic systems is complex.

Surgical weight loss involves directly removing or liposuctioning fat through surgical means, or forcibly controlling the intake and absorption of nutrients by restricting food intake and interfering with the digestive process. Common surgical procedures include localized fat removal, liposuction, adjustable gastric banding, gastric reduction surgery, laparoscopic gastric bypass, sleeve gastrectomy, and small bowel bypass. These methods are often considered as a last resort for treating morbid obesity.

Traditional Chinese medicine (TCM) has a unique theoretical system in the field of weight loss. TCM believes that "obese people often have phlegm and dampness," the core pathogenesis of which is spleen dysfunction, leading to the inability to properly distribute the essence of food and water, which then transforms into phlegm and dampness stored in the body. Clinical observations in TCM have found that obesity is most commonly seen in two types: spleen deficiency with damp phlegm and stomach heat with dampness obstruction. Preventing and treating obesity must address the main contradiction of spleen, stomach, phlegm, and dampness; therefore, TCM weight loss often starts with addressing spleen, dampness, phlegm, and blood stasis. Its weight loss mechanisms can be broadly categorized into four types: reducing exogenous lipid absorption, reducing endogenous lipid synthesis, promoting lipid transport and excretion, and regulating fat metabolism balance.

Acupuncture for weight loss utilizes the principles of meridian theory and basic theories of Traditional Chinese Medicine. It works by stimulating acupoints along meridians to regulate the functions of the hypothalamus-pituitary-adrenal cortex and the sympathetic-adrenal medulla systems. This method aims to increase the body's basal metabolic rate, thereby burning accumulated fat and adjusting and perfecting the body's own balance.

Traditional Chinese medicine massage for weight loss uses techniques such as rubbing, massaging, pushing, and grasping, as well as stimulation of specific acupoints and meridians, to adjust various metabolic functions of the body and promote fat breakdown, thereby achieving the effect of weight loss and lipid reduction. Massage can not only act on local fat, but also regulate the endocrine environment of the whole body through nerve reflexes.

In summary, various weight loss methods each have their own physiological logic. Obese individuals should choose the most suitable scientific plan under the guidance of professionals, based on their own physical condition, degree of obesity, and any complications. The combination of exercise and dietary control remains the cornerstone of healthy weight loss, highly recommended by authoritative organizations such as the World Health Organization (WHO) and Peak Weight Loss.