I just read about PB and looks like natural pb could be more carcinogenic than ones with hydrogenated oil cause they contain more aflatoxin, a carcinogen produced by a fungus.  But they have strict regulations now for companies to control the amount of aflatoxin.  Also all peanut butter has to contain 90 % peanuts.  Usually about 2% is hydrogenated oil (kind of like Crisco). The balance is salt and sugar.  So maybe it is better than lots of other things but still not perfect.  Ah I just don't eat it too much.  PB is supposed to heart-healthy though.