Over 18 years of follow-up, almost 10,000 women developed obesity-related cancers, da Silva's team found.
Researchers also noted that it is best for people to eliminate alcohol consumption to avoid cancer.
The WCRF's cancer prevention recommendations, which come from the latest report and from conclusions drawn by an independent panel of experts, recommends a number of lifestyle choices that people can take to reduce their risk of cancer.
Today, a report reports a further links five cancers including the liver, ovary, prostate, stomach, mouth and throat, bowel, breast and gallbladder, kidney, oesophagus, pancreas and womb. The new research, to be presented Thursday at the European Congress on Obesity in Vienna, Austria, also found that people who underwent weight-loss surgery saw their risk of skin cancer in general decline by 42%.
"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". In a Norwegian study that tracked 137,205 women between 30 and 70 years old, researchers also found that those who gained more than 22 pounds over a period of five to eight years were almost twice as likely as those who maintained a stable weight to develop pancreatic cancer.
-After a cancer diagnosis, follow your healthcare professional's recommendations. "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". WCRF recommends that people cut down on fast and processed convenience foods.
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.
"If current trends continue, overweight and obesity are likely to overtake smoking as the number one risk factor for cancer". "Our cancer prevention recommendations work together as a blueprint to beat cancer that people can trust, because they are based on evidence that has now proved consistent for decades".
Caroline Cerny, the lead of the Obesity Health Alliance comprised of over 40 health charities, medical colleges and campaign groups, said carrying excess weight cannot only raise the risk of cancer, but also type 2 diabetes, heart and liver disease and mental illness.
Susannah Brown, senior science program manager with WCRF, told Newsweek: "This report contains significant findings on how diet, weight and physical activity affect cancer risk and show how important adopting a healthy lifestyle is to reducing cancer risk".
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.
"The Government now has an opportunity to step up and publish a truly world leading obesity plan with strong measures to curb the influence of junk food marketing".