Obese children face increased cancer risk if weight gain continues, experts warn

They advise to eat smaller portions of red and processed meat such as bacon and to eat no more than three portions of it a week.

Reversing a historic trend, rates of lung cancer among younger white and Hispanic women have surpassed those of men - and the change can not be fully explained by gender differences in smoking behavior, researchers said Wednesday.

"However, it appears increasingly unlikely that specific foods, nutrients or other components of foods are themselves important singular factors in causing or protecting against cancer", the report says. The team then analysed this to determine BMI, weight change over a 6-year period, and the subsequent risk of obesity-related cancers defined as cancer of the breast (postmenopausal), colon-rectum, endometrium, ovary, pancreas, kidney, gallbladder, gastric cardia, liver, oesophagus (adenocarcinoma), meningioma, thyroid, and multiple myeloma.

The World Cancer Research Fund released a new set of recommendations for cancer prevention. "But for cancer prevention, we are confident that for most people eating the right food and drink is more likely to protect against cancer than taking dietary supplements".

Avoiding bacon and alcohol could help reduce the risk of cancer up to 40%, experts suggested as they unveiled what has been dubbed the "blueprint" to beat the disease.

WRCF recommends that people should reduce food and beverage consumption to cut their cancer risks.

Fast food and red and processed meats, on the other hand, should be limited or avoided due to evidence that points to the increased risk of cancer from processed meat consumption.

Preventing obesity forms a significant part of the advice, with being overweight likely to overtake smoking as the "number one risk factor for cancer" within decades, the organisation warned.

The authors of the report said that approximately 40 percent of cancers are actually preventable, but despite that the number of new cases is expected to rise by 58 percent to 24 million globally by 2035. It encouraged people to reduce or eliminate consumption of red meat and sugar-sweetened drinks, along with changing their diet and lifestyle.

The report, Diet, Nutrition, Physical Activity and Cancer: A Global Perspective, is based on an ongoing review of decades of evidence by independent experts worldwide. The latest report is based on research involving more than 51 million people and findings are divided by exposures, types of cancer, and cancer prevention recommendations.

Obesity and weight gain are well known to independently increase the risk of several cancers, often referred to as "obesity-related" cancers.

Living an active life full of exercise and eating a diet packed with whole grains, vegetables, fruit, and beans will also keep cancer at bay. She also called on the government to act to curb junk food marketing.