Many people may not know that obese people may be more prone to kidney cancer. Literature from the prestigious medical journal The Lancet shows that for every 5kg/m2 increase in BMI (body mass index), the incidence of kidney cancer increases by 1.24 and 1.34 times for men and women respectively. However, a deeper study reveals that we cannot label all “fat” people as tumor-prone. It turns out that obesity can be divided into central obesity and peripheral obesity, among which central obesity is the main culprit, whose main manifestation is the accumulation of visceral fat. For example, if you look around you, those with beer belly are the typical type of central obesity. Doctors from the Department of Urology of the Cancer Hospital of Fudan University found that many patients with clear cell carcinoma, the most common type of kidney cancer, were obese patients with this type of central obesity. On average, the visceral fat area of each patient with clear cell carcinoma could be 25 cm2 larger than that of patients with other kidney tumors, while the subcutaneous fat content was similar between them. After correcting for confounding factors such as sex, age, tumor size, BMI, history of smoking, history of hypertension, and history of diabetes, visceral fat remained strongly associated with renal clear cell carcinoma. Coincidentally, people with visceral fat accumulation often have concurrent metabolic disorders such as diabetes, hypertension, and hyperlipidemia, medically known as metabolic syndrome. The reason for this phenomenon may be that in addition to storing energy, visceral fat also performs part of the endocrine function, and many of the cytokines they secrete may be responsible for this set of outcomes and even the development of kidney cancer. As we age, it seems that the accumulation of visceral fat is inevitable. Many middle-aged men find themselves with “beer bellies” and many middle-aged women find that their once-proud water-snake waists are gone. However, active exercise, stay away from overeating and maintain healthy habits are still essential to maintain a normal body metabolism and a healthy figure. In terms of diet, the following are recommended: (1) Eat more vegetables, fruits and roughly processed staple foods, and consume more dark vegetables rich in vitamin A and fruits rich in vitamin C. (2) Adhere to appropriate physical activity, active exercise, and maintain body weight. (3) Strictly quit smoking and drink less alcohol. (4) Limit the intake of high-fat diet, avoid eating “fatty meat”. (5) Stay away from fried and deep-fried foods, and reduce the share of butter and cream in the recipes.