One of the most common questions we get here at AICR is about sugar. And it can be confusing. The overall body of evidence suggests that sugar’s link to cancer risk is an indirect one: diets high in sugar can lead to obesity, and excess body fat is a cause of ten different cancers.
But now comes a study performed in mice that is getting a lot of media attention. It suggests a more direct link between sugar consumption and breast cancer development. Published in Cancer Research, the study is interesting, says AICR Vice President of Research Susan Higginbotham, PhD, RD, “but it’s important to recognize, that this is a single study and it is testing diets in mice, not in people.”
“Our reports, which have reviewed thousands of studies on diet and cancer, have found no evidence that sugar or added sugar directly causes cancer in humans. “We recommend limiting energy-dense foods and avoiding sugary drinks, but current evidence suggests it is not necessary to avoid sugar altogether.”
The animal study
In this animal study, researchers fed groups of mice diets with increasing amounts of the sugar sucrose – your basic white table sugar – and compared them to mice fed a sugar-free starch-based diet. These mice all were carrying breast cancer cells. Continue reading