The present study was undertaken to determine the metabolic effect of various levels of fat in the diet. Forty males and the same number of females weighing 3529 were divided into three experimental groups and one control group, 10 rats each in both sexes.
The dietary lipid contents were included in three levels, 2% as low, 30% as high and fat free diet in order to reflect the lipid consumption of present Korean diet. 20% sugar casein diet were employed as standard for control animals. This study was carried for 16 weeks.
After these period animals were sacrificed to collect the internal organs and blood samples by heart puncture In the result of this study, high fat diet group is lower than low fat diet group in the body weight gain, food efficiency ratio, protein efficiency ratio, urinary nitrogen and organ nitrogen contents were same trend but there is no significant difference in these respects.
It was noteworty that high, and free fat diet group revealed more glucose total protein, albumin and globulin contents in the serum than other compared groups. It can be concluded that fat content whether low or high are free in the diet did not show significant effect on body nitrogen metabolism. But 30% high fat diet increased the total lipid and total cholesterol contents in the liver and the serum.
This fact can be interpreted that 2% low fat diet and fat free diet do not need to increase the amount of fat content in the diet as high as 30% fat diet.
% This result might indicate the one possible reason to decide the re commanded dietary fat levels
in Korean diet.
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