Why do some people get lung cancer - even if they never smoke? New research suggests eating a lot of processed foods containing inorganic phosphates could be the explanation. What's more,
the study also suggests that dietary changes to avoid these chemical additives may play an important role in lung cancer treatment.In research just published in the January issue of American Journal of Respiratory and Critical Care Medicine, published by the American Thoracic Society, scientists from Seoul National University conclude that
a diet high in inorganic phosphates, which are found in a host of processed foods including meats, cheeses, beverages, and bakery products, might spur the growth of lung cancer. The researchers also suggest the food additive may contribute to the development of malignancies in people predisposed to lung cancer.
Myung-Haing Cho, D.V.M., Ph.D., and his colleagues studied mice with lung cancer tumors for four weeks. The rodents were randomly assigned to eat a diet of either 0.5 or 1.0 percent phosphate, a range roughly equivalent to what's found in most modern human diets that contain processed foods. At the end of the study period, the animals' lung tissues were analyzed to see what effects the inorganic phosphates had on tumors.