The experiment was carried out to observe the effects of mixing casein and soy protein on the growth, and on N, Ca and P metabolism of the growing Wistar rats. The protein levels of casein, soy protein and protein mixture diet (mixture in equal portions of casein and soy protein as a protein source) were 18%, respectively.
The results on each group are as follows:
1) Same body weight gain, and length of body and tail were obtained from the three groups.
2) Feed consumption and feed efficiency were similar among the three groups. The order of N efficiency was as follows; casein>protein mixture>soy protein.
3) The order of digestibility of N and Ca, and ratio of Ca retention were as follows; casein>protein mixture>soy protein. Digestibility of P, and quantities and ratios of retention of N and P and quantity of Ca retention were similar among the three groups.
4) Dry weights, and moisture and fat-free weights of the femur and the tibia, and the content of Ca and P in both the bones were similar among the three groups.

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It is necessary for the study of nutrition under stress to clarify the hormonal control caused by the stressing factor. Adrenomedullary hormone is known to be the most important hormone to control the metabolism and physiological state under acute stresses. In this experiment, we studied about the electroshock therapy and surgical operation in relation to the urinary catecholamine excretion. The marked increase in epinephrine and norepinephrine excretion was observed immediately after electroshock or surgical operation. Injection of pentothal (anesthetic) and/or inderal (sympathetic β blocking agent), however, resulted in the depression of the increased amount of norepinephrine. While, in the operation, norepinephrine was shown to be very variable in each case. Therefore, it was suggested that the release of norepinephrine was affected by the sensitivity of nervous system to the stressing factor. On the other hand, the release of epinephrine was not changed by the anesthetic or sympathetic blocking agent, and also the change of its daily excretion for a week after operation was similar to each case. These results suggested that release of epinephrine was not significantly affected by the sensitivity of nervous system.

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Protein content and nutritive values of protein of elementary school lunch in November in 1969 were studied at two cities of Santama district in Tokyo.
1) Satisfactory intake of protein, animal protein and essential amino acids was found in Schools A and B.
2) Protein score was 76 in School A, and 73 in School B. First limiting amino acid was sulfur-containing amino acid. Mean value of protein score in June and November was 75.5 in School A, and 74 in School B.
3) E/T ratio was 2.46 in School A, and 2.42 in School B. Mean value of E/T ratio in both months was 2.45 in School A, and 2.42 in School B.
4) Egg score was 68 in School A and 66 in School B. First limiting amino acid in both cities was sulfur-containing amino acid. These tendencies were the same to results obtained in June.
5) Human's milk score was 84 in School A and first limiting amino acid was tryptophan or lysine. Its score in School B was 83 and first limiting amino acid was lysine and second was tryptophan. Mean value of human's milk score in both months was 84 in School A, and 83 in School B.

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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.

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1. Main objective of this report attempts to point out the close association between dietary behavior and migratory experience, based on the sample survey on migration conducted in the Hiroshima prefecture by the Institute of Population Problems in 1970.
2. 3, 071 persons aged 15 years and over were drawn from the three stratified areas, namely urban, suburban and rural like mountain villages and islands on the basis of random sampling.
3. Principal food pattern (carbohydrate source) was classified into six. Major categories were: (1) taking rice in three meals, (2) taking bread in breakfast only, (3) taking bread in lunch only, (4) taking noodles in lunch only, (5) breakfast without principal food, and (6) others. Of course, taking rice in three meals was dominant in the dietary life of the Japanese population. However, this traditional category had been fairly changing according to areas, age, occupation, education and migration experience.
4. Overall change and difference in dietary custom in terms of principal food pattern was indicated by the proportion of the rice intake among all types of diets. For example, the proportion was lowest in the urban (61%), and highest in the rural area (86%), and intermediate in the suburban area (71%). Taking bread in breakfast pattern, on the contrary, was highest in frequency in the urban (17%), lowest in the rural (5%), and intermediate in the suburban area (14%). Areal differentials in principal food patterns may be explained by differentials in occupation and educational levels and also age factor and migration experience.
5. Principal diet patterns were clearly distinguished among non-migrants and migrants. The latter tended to take more diversified patterns, and less rice intake and more bread intake in breakfast than the former. The same tendency was found among age groups of each category. However, it was very interesting to note that the dietary behavior was more marked in the age groups aged 30 and over. Higher frequency of taking bread in breakfast and less frequency of taking rice in three meals were characteristic of these age groups of migrants than those of non-migrants. There was not any significant difference of dietary pattern among the age groups aged less than 30 of non-migrants and migrants. It suggested that much more uniform pattern of principal food tended to be strengthened easily particularly among young generation because of the standardization of way of life. However, the youngest age group, 15-19, tended to be strongly influenced by dietary behavior of their parents who were migrants or non-migrants.
6. Some conclusions are as follows. Firstly, remarkable difference among age groups of migrants and non-migrants may be important in view of drastic change of age composition of population in the 1970's. Secondly, urbanization which will be accelerated in this decade, may be another factor influencing dietary behavior of the Japanese population.

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Maltitol candy is a new sweetening material with no calorie.
This study had been made based on the preference research with 26 college women.
1. 60% of them answered that maltitol candy was rather sweet.
2. 65% of them reported that maltitol candy was palatable.
3. Majority of them were taking maltitol candy between meals for diabetes or obesity.
4. No correlation was observed between the result of the preference research and the extent of obesity of college women.

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