著者

髙橋 正弥 上野 瞳 佐藤 直人 鈴木 香澄 稲葉 洋美 澁谷 顕一

出版者

一般社団法人 日本家政学会

雑誌

日本家政学会誌 (ISSN:09135227)

巻号頁・発行日

vol.69, no.2, pp.136-141, 2018 (Released:2018-03-09)

参考文献数

16

---

The purpose of the present study was to estimate the minimal food cost based on the dietary reference intake for Japanese people. For this purpose, we calculated the minimal food cost using mathematical optimization. To calculate a food plan for each age-gender group, 68 mathematical optimization models for each of the food plan groups were employed. For the calculation of mathematical optimization models, we used data based on the dietary reference intake for Japanese people and a retail price survey by the Statistics Bureau of the Japanese Government. We established four categories (25%, 50%, 75% and 85% for standard food intake). From these restrictions, we calculated the minimal food cost using mathematical optimization. The normal food cost per month for adult males (18-29 years) was 41,865 Yen, and for adult females (18-29 years) was 26,037 Yen. Based on these results, we were able to estimate the minimal food cost for families in order to prevent lifestyle related diseases. In this study we used computed ingredients instead of food to calculate optimal combinations, so it has not been verified whether these combinations can be realized in practice. In order to put the results of this study into practice, it is necessary to verify the results of the calculation and the connection between cooking and menu planning.

著者

鈴木 香澄 佐藤 直人 澁谷 顕一

出版者

日本生理人類学会

雑誌

日本生理人類学会誌 (ISSN:13423215)

巻号頁・発行日

vol.22, no.2, pp.85-89, 2017 (Released:2017-10-31)

---

Glucose is the only fuel normally used by the brain. It is thought that blood glucose levels affect cognitive function. The present study investigated whether performance in the emotional Stroop task (EST), which can evaluate both the cognitive function and emotional state of subjects, was susceptible to blood glucose levels or not. Each subject participated in the EST under both fasting condition (FC) and blood glucose increased condition (BGC). Our results show that the reaction time of the EST in the BGC was significantly higher than that in the FC (p = 0.0011). However, we did not find a significant difference in emotional state between BGC and FC (p = 0.5134). From these results, we conclude that increased blood glucose levels improve cognitive function but does not change the emotional state of subjects.