Many plant-based foods are high in vitamin K.
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A research lab at Tufts University is trying to find out how the vitamin may protect against age-related disease.
Warfarin was first used as a pesticide.
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Warfarin is a blood thinner that has been used for more than 60 years to help prevent clots and strokes. But it also increases the risk of bleeding.
Blood-thinning medication can have life-threatening implications, including causing a heart attack, if used over a prolonged…