This study was conducted among women in regional communities who attended nutrition guidance classes for 27 years since 1958 and before in order to learn the effect of nutrition guidance on regional women living in Kawabe area of Okayama prefecture. The emphasis was placed on use of fats in dishes in order to learn how the nutrition guidance influenced the kind and number of dishes prepared daily.
1) As the kind and number of daily dishes change, the frequency of using fats in dishes increased remarkably, and significantly after the guidance was started (in 1950) compared to those years before the start (1935-1940).
2) Changes in the kind and number of daily dishes were studied in respect of the patterns of cooking procedure, but no basic changes were observed before and after the start of nutrition guidance. A significant increase was observed, however, in the pattern of preparation (P)—mixing & modification (M)—heating (H) for the dishes using fats.
3) Frequency of cooking dishes which were taught in nutrition guidance classes was studied in respect of the cooking procedure patterns, and was found to be different from the frequency of cooking daily dishes. There was observed, however, no difference in the frequency of fats used in the dishes in the initial stage of nutrition guidance (1958-1964), before and after the guidance. The P→M type and P→H→M type dishes which were absent in the daily diet prior to nutrition guidance became very popular. These dishes were taken up by the nutrition guidance thereafter, and were included in the curricula of the nutrition guidance class.
4) Various dishes taught in the nutrition guidance class were taken up by non-attendants of the lecture on nutrition guidance, suggesting that nutrition guidance class plays an important role in various educations.
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