Abstract
The purpose of this study was to determine whether canola oil (monounsaturated fatty acids) and corn oil (polyunsaturated fatty acids) compared to coconut oil (saturated fatty acids) had a differential effect on adipose tissue deposition in growing female rats fed high (40% kcal) (HF) or low fat (6% kcal) (LF) diets. Body weight, total body fat content, and adipose tissue depots were greater in the HF fed groups compared to the LF fed groups. In the LF fed rats, body weight, body weight gain, and total body fat were higher in the rats fed corn oil (COR) compared to rats fed canola oil (CAN) or coconut oil (COC). Fat source affected adipose tissue fat cell size and number differentially. In the HF groups, fat cell size was larger for COR fed rats than for CAN or COC fed rats, but fat cell number was greater for COC fed rats than for corn and CAN fed rats. CAN had a positive advantage over COR since rats fed the LFCAN had a lower body weight gain, HFCAN rats maintained a smaller fat cell size than HFCOR and HFCOC fed rats, and plasma lipids were lower in CAN fed rats than for COR fed rats.
Published Version
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