Although detailed studies have been made under the national nutrition survey as well as by many individuals as regards the nutrition of farming people in busy seasons, little has been made clear about the relation between nutrition land degree of fatigue of farming people in busy seasons.
Then we three of Hitoyoshi Health Center, a health agency of Kumamoto Prefecture, made a survey of the degree of fatigue of the farming people, by examining their urine by Takeya and Kawata's methed, on a group of 17 males and females who were given guidance in nutrition (guided group) and a group of 23 nonguided males and females (ordinary group), for approximately two months centering on the riceplanting season. The subject individuals were given, prior to the survey, health examinations including X-ray photographing (indirect) and parasitic nit inspection, but parasite carriers found thereby could not be parasiticided before the survey owing to the limited time. The guided group was given, per adult per day, 8 grams of colzaoil, a gram of calcium carbonate (1.6 grams of Collo-Calso) and a gram of enriched rice (Vitarice) in order to make up for the shortage of fat, calcium and vitamin B₁. Urine was collected twice a day, e. g.: at the second urination after rising in the morning (fore urine) and at three o'clock in the afternoon (after urine). Results of the experiments follow summarily:
In regards to calory, guided group was catered somewhat lower, and ordinary group a little higher, than the standard intake. The diet of ordinary group consisted of more staple food and less sidedishes. Therefore, although the diet of guided group was poorer in calory than that of ordinary group, it was more rational in respect of the composition of diet.
When the composition of diet was rational, though poorer in calory, fatigue due to labor in the riceplanting season was remedied sooner and the degree of fatigue was slighter.
The fatigue in the rice-planting season was more noticeable in women than in men. Because women were slower in recovering from fatigue and higher in the degree of fatigue.
The farming people's fatigue in the rice-planting season was not so high as we had expected.
They already indicated fairly high fatigue conditions during the days they were making preparations for the rice-planting, but the conditions fell off temporarily immediately before the rice planting season.
No noticeable difference was found between guided and ordinary groups with respect to chest-girth and upper arm-girth.

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There have been done many experimental studies on the loss of vitamin C by cooking, but no data regarding the loss of vitamin C in case of home cooking. Consequently, we often encounter many inconveniences for nutritional improvement.
In order to evaluate the correct data, we studied to find out the exact amount of the loss of vitamin C on some vegetables under the ordinary cooking conditions.
First of all, Japanese radish and cabbage (autumnal) have been studied.
Results obtained were as following figure I-II in Japanese.
Method adopted in finding vitamin C is the improved Teruuchi's hydrazine method.

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