I am going to make this short and sweet, I love my beer.Since my aortic valve replacement ( St. Jude mechanical) and my quadrupal bypass on Dec. 13, 2004 my INR has fluctuated between 1.5 and 7.8 without changing my life style, I try to eat right I do not smoke (anymore) I could use more exersise but I get frustrated mostly because of the valve, the situation is that if I do not drink beer for a week or I do drink beer up to 7 beer a day over a 12 hour period how much can this effect my INR. I only adjust my INR by 10 to 20% a week when it's out of whack. I am under a lot of stress, mostly financial but also I had to retire (at 62) which I was not prepaired to do and I feel that my mental state has a lot to do with this. Any feedback would be appreceiated because even my Dr. is at a loss but he's not the best when it comes to INR. The funny thing is part is that a freind of mine also has a St. Judes aortic valve and he drinks 3,4,5 beer every day and maybe a few more on Sat. night when he goes out and his Dr. told him "just be consistant with what you'r doing" and he is always within range. So what's the answer? Does anybody drink beer and not have a problem with their INR?