Revista de Nutrição
Print version ISSN 1415-5273
DORES, Sílvia Maria Custódio das; PAIVA, Sérgio Alberto Rupp de and CAMPANA, Álvaro Oscar. Vitamin K: metabolism and nutrition. Rev. Nutr. [online]. 2001, vol.14, n.3, pp. 207-218. ISSN 1415-5273. http://dx.doi.org/10.1590/S1415-52732001000300007.
The aim of this study was to discuss the aspects that involve the understanding of vitamin K metabolism and recent advances of its role in human nutrition. The paper presents dietary sources, absorption, distribution in the body and metabolism of vitamin K, nutritional recommendations, evaluation of nutritional status related to the vitamin and factors influencing its plasmatic concentration. In the light of evidences about vitamin K role in bone metabolism, further studies are needed to identify the possible long-term consequences to health of subclinical vitamin K deficiency. A great challenge for researchers and further scientific committees will be certainly concerned with investigation of new nutritional requirements of the vitamin.
Keywords : vitamin K; philloquinone; biological availability; metabolism; nutrition.