Could a long term infection with h pylori impair the metabolism of calcium, as well as the vitamin k?

Not known to but...: I admire your persistence in asking this. I think the reason no one answered yet is no one knows, though i know of no evidence of this ; can think of no mechanism via which this might happen. However, see http://www.Ncbi.Nlm.Nih.Gov/pmc/articles/pmc3166673/ for an interesting possible association. H. Pylori infection is a complex subject- see http://www.Allaboutnutritionalhealing.Com/hpyloristory.