I haven't run into anything that shows that low carb per se can kill h. pylori, but I have read that recent research showed that broccoli contains a substance that is very effective against h. pylori as well and many people do report relief from long-standing gastrointestinal problems after beginning low carb. Here's a link to the discussion on the effects of broccoli in h. pylori: http://forum.lowcarber.org/showthre...light=h+pylori. Only a doctor can diagnose whether or not you have an ulcer, though.