Key points from article :
Strong evidence people who are overweight have an increased risk of developing 11 different cancers.
Most of them either digestive (such as bowel cancer) or hormonal (such as breast cancer).
For example, for increase of 5 BMI score, there was a 9% increased risk of developing colorectal cancer in men.
Adults can have excess fat without being considered overweight.
It’s possible excess fat is linked to other cancers, but the evidence was not quite as strong.
The study was published in the British Medical Journal.