ok some more facts:
eating them too often produces more stomach acid,too much stomach acid over a period of time will eat away at the lining of the esophagus and stomach as well as the intestines, causing an ulcer.
they also prevent strokes, heart attack and blood clotting (which i mentioned before)!
(causes bleeding(ulcers), reduces blood clotting ..that makes sense right?)
let me know if you want any more info and ill try to get more!
again..having them once in a while is probably okay..just dont have too many, too often!