The UK Government’s Obesity Project found that in 2013 alone, around 440,000 new cases of diabetes in the UK were attributable to being overweight or obese, including 257,200 new cases of diabetes. A new report by Cancer Research UK and the British Health Forum, based on computer models created by the program, shows that about three out of every four adults in the UK are expected to be overweight or obese by 2035, and 39% of adults will be obese. In addition, men will have a higher prevalence of overweight or obesity compared to women (76% vs. 69%). The increase in the number of overweight and obesity cases is expected to result in an additional 670,000 cancer cases and 4.62 million, 1.63 million, and millions of new cases of type 2 diabetes, coronary heart disease, and stroke, respectively. Given that the cost of treating obesity and its associated diseases will be £2.51 billion per year, there is a need to proactively prevent and tackle the onset of obesity. According to the report, if the number of overweight and obese patients can be reduced by 1% per year compared with the projected, it will save the NHS 300 million pounds in 2035. According to the report, the following measures can be taken to reduce the incidence of obesity: ① banning unhealthy food and drink advertisements targeting children from 6-9am; ② restricting the online marketing of unhealthy food and drink; ③ imposing a tax on sugary drinks; ④ making food with more sugar, salt and fat more expensive and increasing the affordability of healthy alternatives; ⑤ making the colorful nutritional coding of front-of-house packages cover more food and drink products; ⑥ improving recreation and entertainment; and ⑥ making the colorful nutritional coding of front-of-house packaging cover more food and drink products; and ⑥ improving recreational activities. Drinks products; ⑥ Improve recreational facilities to encourage more walking and cycling. Alison Cox, Cancer Research UK’s Director of Cancer Prevention, pointed out that obesity will be a huge burden on British society and the NHS in the future, and that there is a need to act proactively to tackle the obesity epidemic. The government needs to actively restrict the sale of sugary foods to children. Susan Jebb, University of Oxford, commented that the correlation between obesity and cancer has been poorly understood in the past. For the UK population, which does not have a high prevalence of smoking, weight loss is undoubtedly a good option to reduce the incidence of cancer. In fact, early detection and treatment is better than being proactive in reducing the incidence of cancer. Quit smoking, quit drinking large amounts of alcohol, weight reduction is undoubtedly the best prevention method. In today’s society, the material and economic development is rapid, want to control the calorie intake can only rely on self-consciousness. But people with good self-awareness are after all a minority, more obese patients need to rely on external guidance to help them lose weight. Metabolic surgery may be the last line of defense for weight loss. Only severely obese patients who are unable to get rid of their weight will be advised to consider surgery for the treatment of obesity or obesity-induced type 2 diabetes.