Fellow CUP panel member Professor Hilary Powers, of Sheffield University, said: "It is not just the individual who can make changes to reduce their risk of cancer.
"Governments and other organisations can do a lot to make a healthier lifestyle an easier option for us all."
Researchers at Imperial College London collated and reviewed all the scientific research available on womb cancer, diet, physical activity and body weight in the first global review since 2007.
An international panel of experts judged the evidence and scientists at WCRF estimated that about 44 per cent of UK cases could be prevented through physical activity and body weight.
Scientists believe there are several reasons for the link between body fat and cancer, such as fat cells releasing hormones that can increase the risk of some cancers.
Regular physical activity can help to keep these hormone levels healthy as well as strengthening the immune system and maintaining a healthy digestive system.
World Cancer Research Fund executive director Karen Sadler said: "To reduce the risk of womb and other cancers, World Cancer Research Fund recommends being as lean as possible without becoming underweight and being active for at least 30 minutes every day.
The study also revealed evidence that drinking coffee can cut the risk of womb cancer, but not enough to recommend it as a protection.
Karen Sadler of the WCRF said: "The evidence on coffee is very interesting, but a lot more work still needs to be done."
- DAILY MAIL
