Estimated daily intake of biotin in hospital meals in Japan through dietary surveillance

抄録

We determined the biotin content in hospital meals using different dietary surveys such as “food group calculation survey” and “duplicate meals survey,” to estimate the dietary intake of biotin in patients. As for hospital meals, the daily average biotin contents for 10 days calculated by the food group calculation survey were 19.4 μg/day in meals for infants, 45.5 μg/day in meals for children, 52.8 μg /day in meals for pregnant/lactating women, and 56.7 μg/day in common meals for adults. The average contents of biotin for 10 days by the duplicate meals survey were 9.7 μg/ day in meals for infants, 41.6 μg/day in meals for children, 34.2 μg /day in meals for pregnant/lactating women and 41.9 μg/day in common meals for adults. The common meals contained basic and standard cooking ingredients and balanced with Dietary Reference Intake (DRI) for adult patients. The average intake of biotin in common meals for adults in the hospital exceeded the Adequate Intake (AI) (50 μg/day) for adults via the food group calculation survey, but was not sufficient in meals for adults and pregnant/lactating women by the duplicate meals survey. It is necessary to be careful about the kinds of foods and the method of cooking the ingredients when the biotin intake for hospital patients is calculated using the hospital menu sheet.