On November 4, 2008, Barack Obama defeated Republican presidential nominee John McCain, 52.9 percent to 45.7 percent, to win election as the 44th president of the United Statesâand the first African-American to hold this office. His running mate, Delaware Senator Joe Biden, became vice president.
Apart from low dietary intake, the most common reason to see symptoms of vitamin K deficiency at least related to blood clotting involves use of medications that deliberately block the ability of vitamin K to help make blood clotting proteins.
There are two types of prescription blood thinners: anticoagulants and antiplatelets. Anticoagulants prevent Vitamin K, which is found in dark leafy greens, from working to form clots. Antiplatelets, meanwhile, prevent the platelets in your blood from releasing thromboxane, which is also needed for blood clotting.