Throat cancer is linked to smoking and drinking and often follows a condition called Barrett's esophagus, an irritation of the lining of the gullet or food pipe.
Now scientists at the Institute of Food Research have found that patients suffering from Barrett's esophagus who, over a six-month period, took supplements of the omega-3 fatty acid -- found in oily fish such as mackerel or salmon -- significantly decreased their levels of an enzyme associated with throat cancer.