We carried out an investigation of the farmers engaged in vinylhouse work in March 1970, to clarify their nutritional status.
Results obtained were as follows:
1. Comparing the average nutritional intake of an adult per day with the desirable nutritional standard for Japanese in 1975, only the intake of protein and V. C were over, but the individual difference among the subjects was great.
2. The average value of the nitrogen concentration in the urine measured by the corrected urinary concentration method for the estimation of the nutritional status which Takagi proposed indicated that the protein intake of this group was not low.
3. Comparing the dietary constituent of an adult per day with the data of the food constitution tables for Japanese in 1975, the intake of meat and poultry, fats and oils, and sugars were evidently insufficient in the males, and the insufficient intake of milk and milk products, fats and oils, fruits and sugars were evident in the females.
4. In the pattern of cooking, soup was taken many times in every meal. Most times two kinds of cooked preparations was observed. The menu was simple.
It was shown that the dietary life of vinylhouse workers was not significantly different from that of other farmers.