Refined rice oil, fefined shark oil, three kinds of hydrogenated sardine oil (Jodnumber: 110, 90 and 62), refined and hydrogenated finback whale oil, margarine of the whale oil and sperm whale oil were administered to 17 men for 3 to 5 days.
These oils and fats (A) were utilized equally well, but were absorbed on lessdegree than butter and soybean oil (B): when A was administered 57g daily, lipideof the stool increased 1.9g and the absorption rate was 90.5% when B was administered 63g daily, lipide of the stool increased 0.6g and the absorption rate was 95.1%.
The sperm whale oil tasted bad, killed the appetite and often caused the diarrhoea, and the absorption rate was 83.2%(administered 60g daily).

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Seven healthy men were examined after administration of fats and oils such as butter, margarin, soy-bean oils, fin whale oils.
1) The evacuation time was approximately 4 to 6 hours (2 hours in hunger) and not related to the types of various fats.
2) The numbers of erythrocytes, haemoglobin and haematocrit showed no marked change.
The number of leucocytes increased slightly.
3) The maximum values of plasma lipids were reached after 3-5 hours.
The plasma lipids increased from 10 to 40%, total cholesterin 20%. Total fatty acids increased parallel to total plasma lipids.
Serum esterase diminished slightly.
Serum protein increased slightly. Non. protein nitrogen showed no change.
Blood sugar diminished slightly.
These variations are not related to the types of fats andoils.
4) In hunger, plasma lipids diminished slightly, but serum esterase showed no change. Blood sugar diminished in greater quantity than after the administration of fats.
5) No significant differences were found between edible fats (butter, soy-bean oils etc.) and fin whale oils.

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The author, after examining the nutritive value of sperm whale oil and finback whale oil on rats, as compared with those of butter and soy-bean oil, administered refined finback whale oil to two patients and hydrogenated whale oil to three patients 60 gm a day for one to two months, and examined digestibility of fats, change of nitrogen balance, blood composition and other clinical states, in order to see if their continuous administration gives any harm to human bodies.
The growth of the rats fed with hydrogenated finback whale oil was found slightlyshorter than that of the rats fed with butter, but the same as that of the rats fed. with soy-bean oil.
The growth of the rats fed with sperm whale oil was remarkably inferior to that of the rats fed with soy-bean oil.
Having the least smell, hydrogenated whale oil mixed with bean oils could be administered continuously for two months. Fecal fat differed individually: But the difference was only 0.2 to 1.8 gm on the same body, the average finding of the fecal fat being 4.7 gm a day for the low fat diet and 5.6 gm a day for the high fat diet. Digestibility was 91 on the average, or the same as that of healthy persons, and it did not vary during the period of administration.Glucose tolerance was inclined todecrease as in the case of other edible fats. No haernolysis was found in the body administered with whale oil 60 gm a day for one to two months.
From the results of nitrogen balance and of blood composition tests, there was hardly seen any harm in administration of finback whale oil to diabetes mellitus patients for one to two months.
So far as it is administered in such quantity and for such period as mentioned above, finback whale. oil used as a substitute for edible fat is not harmful to human bodies.

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[in Japanese]

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