Danger Of health drinks, especially for seniors

Thanks to a lady in line at a local pharmacy, my senior friend and I were warned of the danger of drinking Ensure with vitamin additives, particularly vitamin K. Anyone on Coumadin (Warfarin) a blood thinner, should be aware of the danger of combining the two. Patients on blood thinners must get their Coumadin blood level checked every couple of weeks. Ensure with vitamin K in it, counteracts the drug and plays havoc with desired blood clotting levels. Doctors and Pharmacists should inform those on the drug of the serious ramifications of drinking Ensure, or any other high nutrition, protein drink that has vitamin K in it. Perhaps its time the companies making these products (often aimed at Seniors), put more thought into what they are doing and to the danger in which they are exposing these people......marge