A major European study has found a link between high blood sugar and pancreas, skin, womb and urinary tract cancers in women. The same study also links high blood sugar to an increased risk of breast cancer. More information in this article.
Diabetes causes high blood sugar but this can also be caused by eating too much sugary food. The research findings show women with high blood sugar levels have an increased cancer risk, even when they do not have diabetes.
Some diabetes experts have said that more work needs to be done to confirm these findings, but I don't think it would hurt to eat a healthy diet, especially if you are a woman. Blood sugar levels can be controlled by eating a balanced diet and maintaining a healthy weight.
At least 40% of cancers can be prevented by following a healthy lifestyle. Previous research has shown that people with type 2 diabetes have a higher risk of cancer.
People who are white and over 40, or black or South Asian and over 25, and has a family history of diabetes or are overweight should consider getting tested for diabetes.