Fries M E, Chrisley B M, Driskell J A
Am J Clin Nutr. 1981 Dec;34(12):2706-10. doi: 10.1093/ajcn/34.12.2706.
The vitamin B6 status of 35 preschool males and females was evaluated using plasma pyridoxal phosphate levels. The kilocalorie, protein, and vitamin B6 intakes were also estimated. Height and weight values of the three and four year old volunteers were within normal ranges. Seventeen percent of the children had estimated vitamin B6 intakes less than 2/3 of RDA. The estimated B6 intakes and plasma pyridoxal phosphate levels of children who took vitamin supplements were significantly higher than values for subjects not taking supplements. The plasma pyridoxal phosphate levels of children reportedly consuming less than the RDA for vitamin B6 were significantly lower than those of subjects consuming higher levels. Of the children 9% seemed to have inadequate vitamin B6 status as indicated by their having plasma pyridoxal phosphate levels below 8.5 ng/ml.
通过血浆磷酸吡哆醛水平评估了35名学龄前男性和女性的维生素B6状况。同时还估算了千卡、蛋白质和维生素B6的摄入量。3岁和4岁志愿者的身高和体重值在正常范围内。17%的儿童估计维生素B6摄入量低于推荐膳食摄入量（RDA）的2/3。服用维生素补充剂的儿童的估计B6摄入量和血浆磷酸吡哆醛水平显著高于未服用补充剂的受试者的值。据报道，维生素B6摄入量低于RDA的儿童的血浆磷酸吡哆醛水平显著低于摄入量较高的受试者。9%的儿童似乎维生素B6状况不足，这表现为他们的血浆磷酸吡哆醛水平低于8.5纳克/毫升。
