Sixty grams per day of wheat-germ oil, or peanut oil were fed to 17 healthy young girls for a week. Bloods were sampled before, after and during the oil feeding period for a total of 4 times, and the blood samples thus obtained were analyzed for cholesterol content.
The fatty acid compositions of both oils were investigated by Gas-Liquid-Chromatography.
The serum cholesterol level decreased by 16% in case of the wheat-germ oil and 1% in the peanut oil.
Considering the linoleic acid contents of these oils and other oils which effects had been observed in the previous reports, the cause of serum cholesterol lowering effect may be attributed not only to their linoleic acid content, but also to their unsaponifiable matters.
Especially the unsaponifiable matters of germ oil for instance, of rice bran oil, corn oil and wheat-germ oil, seem to have a marked cholesterol lowering effect. Further investigation on unsaponifiable matter will be of importance.
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