An insufficient vitamin K intake leads to bruising, nosebleeds, dark black stools, heavy periods and osteoporosis. Some studies report that the lower the vitamin K intake, the higher the risk of fractures. It is therefore advisable to ensure an adequate vitamin K intake, to prevent
the risk of osteoporosis. In Europe, the EFSA committee (EFSA, 2006; 2010)
stipulated that the intake in adults and children should represent the equivalent of 1 μg/kg of
body weight, even if the origin of the intake is mainly an endogenous bacterial source (intestinal microbiota).