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KMID : 1012320020050010020
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Nutritional Sciences
2002 Volume.5 No. 1 p.20 ~ p.25
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Evaluation of Vitamin B6 Status and Korean RDA in Korean College Students Following a Uncontrolled Diet
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Oho Youn-Ok
Kim Young-Nam
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Abstract
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The vitamin B6 status of 49 healthy college student (women, aged 20-26 y) was estimated for evaluation of vitamin B6 status and the Korean Recommended Dietary Allowance (RDA) for vitamin B6. The average daily vitamin B6 intake of the subjects was 0.86 ± 0.289 mg/d or 61.43 ± 24.10% of Korean RDA. The average ratio of vitamin B6 intake to daily protein intake was 0.014 ± 0.003 mg/g protein. Foods from animal and plaint sources provided 34.25 ± 18.62% and 65.78 ± 18.72%, respectively, of total vitamin B6. Plasma pyridoxal 5’-phosphate (PLP) concentration was significantly (p<.01 - p<.001) positively correlated to intakes of all other nutrients except vitamin C. However, no significant correlation was found between plasma PLP and nutrient intake. Vitamin B6 intake only tended to have a positive correlation with plasma PLP concentration. Plasma total cholesterol was correlated to plasma PLP concentration (p<.05). Plasma PLP had no correlation with levels of glucose, triglyceride, and albumin. These results confirm that the present Korea RDA for vitamin B6 of 1.4mg/d based on 0.02 mg/g protein is adequate.
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KEYWORD
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vitamin B6 status, plasma pyridoxal 5′-phosphate, recommended dietary allowance, blood biochemical indices
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