A LINK BETWEEN CANARYSEED AND ESOPHAGEAL CANCER
Southern Africa, northeast Iran, and northern China have unusually high incidences of esophageal cancer, and several studies have indicated that consumption of flour contaminated with canaryseed silica fibers (spicules) may be a contributor.
Another study found that mice fed traditional varieties of canaryseed developed tumors around their mouths and noses, the areas that most frequently came into contact with the canaryseed silica fibers. Several studies have called out physical similarities between silica spicules and asbestos fibers. It’s possible that the sharp, needle-like shape of the silica fibers on traditional canaryseed hulls may contribute to cell damage in the throat that may lead to cancer.
But before you start to worry about canaryseed, please note that Silica Fiber Free™ varieties do not grow these spicules.