Those who eat sugar-rich Western diets face a significantly increased likelihood of development of breast cancer and metastasis of tumors to the lungs, a new study cautioned.
A team of researchers at the University of Texas MD Anderson Cancer Center demonstrated that fructose and sucrose, which are found in table sugar and corn syrup and serve as key ingredients in Western diets, accelerate growth of breast tumors and also make it spread to some other parts of the body.
Some previously conducted studies had also linked dietary forms of sugar and Western diets to many types of cancer. However, it does sort of contradict studies that claim lifestyle choices, including diet and smoking, are mainly responsible for development of cancer.
Study author Dr. Lorenzo Cohen said they investigated the impact of high levels of dietary sugar on development of mammary gland tumor in multiple mouse models, and found that dietary sugar accelerated the growth of the deadly disease.
Sharing the findings, Cohen said, “We determined that it was specifically fructose, in table sugar and high-fructose corn syrup, ubiquitous within our food system, which was responsible for facilitating lung metastasis and 12-HETE production in breast tumors.”
Researchers also found that lung metastases among mouse models given sucrose-rich or fructose-rich diets were also more evident. However, they could not determine whether sugar’s effect on growth of tumor is direct or indirect.