http://articles.mercola.com/sites/articles/archive/2001/05/19/grass-fed.aspxThe grain-based feed given to cattle in the US may help produce a nice cut of beef, but such feeding practices come with a price -- including, researchers warn, an increased risk of exposing meat eaters to Escherichia coli (E. coli) bacteria. Much attentionenCommunityServer 2008.5 SP1 (Build: 31106.3070)http://articles.mercola.com/sites/articles/archive/2001/05/19/grass-fed.aspx#196436Tue, 26 May 2009 01:20:17 GMT24451277-a5aa-4add-96dc-64081bfd86fa:196436mtnprivy<p>Actually, E coli are normally in our own gut. &nbsp;It is the &nbsp;0157:H7 variety &nbsp;that has adapted to the more acid gut of the grainfed cows, and it contains a virus. &nbsp;The normal E coli are responsible for vitamin K1 and K2 &nbsp;that are synthesized in our gut, and help us with blood coagulation. &nbsp;Apparently the K of vitamin K stands for Koagulate, in German.</p> <img src="http://articles.mercola.com/aggbug.aspx?PostID=196436" width="1" height="1">