Dismore MacKenzie L, Haytowitz David B, Gebhardt Susan E, Peterson James W, Booth Sarah L
Jean Mayer USDA Human Nutrition Research Center on Aging, Tufts University, Boston, MA 02111, USA.
J Am Diet Assoc. 2003 Dec;103(12):1650-2. doi: 10.1016/j.jada.2003.09.028.
Assessment of vitamin K dietary intakes has been limited by incomplete vitamin K food composition data for the US food supply. The phylloquinone (vitamin K(1)) concentrations of nuts (n=76) and fruits (n=215) were determined by high-performance liquid chromatography. Each sample represented a composite of units obtained from 12 to 24 outlets, which provided geographic representation of the US food supply. With the exception of pine nuts and cashews, which contain 53.9 and 34.8 microg of phylloquinone per 100 g of nut, respectively, nuts are not important dietary sources of vitamin K. Similarly, most fruits are not important sources of vitamin K, with the exception of some berries, green fruits, and prunes. Menu planning for patients on warfarin can include a healthy diet including fruits and nuts without compromising the stability of their oral anticoagulation therapy.
由于美国食物供应中维生素K的食物成分数据不完整，对维生素K膳食摄入量的评估受到了限制。通过高效液相色谱法测定了坚果（n = 76）和水果（n = 215）中的叶绿醌（维生素K(1)）浓度。每个样本代表从12至24个销售点获取的单位样本的混合物，从而提供了美国食物供应的地理代表性数据。除了每100克坚果分别含有53.9微克和34.8微克叶绿醌的松子和腰果外，坚果并非维生素K的重要膳食来源。同样，除了一些浆果、绿色水果和李子外，大多数水果也不是维生素K的重要来源。为服用华法林的患者制定菜单计划时，可以包括健康饮食，其中包含水果和坚果，而不会影响其口服抗凝治疗的稳定性。
