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Atherosclerosis. 1984 Mar;50(3):253-9.

Experimental atherosclerosis in rabbits fed cholesterol-free diets. Part 12. Comparison of peanut and olive oils.


The atherogenicity of peanut oil is well established as is the fact that the structure of the component triglycerides of peanut oil influences its atherogenicity. This study was carried out to determine if the relative saturation of peanut oil was partly responsible for the observed effects. Rabbits were fed a semipurified, cholesterol-free diet containing 14% of North American peanut oil (iodine value, 100), South American peanut oil (iodine value, 110) or olive oil (iodine value, 83) for 8 months. Rabbits fed olive oil exhibited higher levels of serum and liver lipids than did the two peanut oil-fed groups but significantly lower levels of aortic atherosclerosis. The findings confirm earlier observations that the structure of a fat can have an affect on its atherosclerogenic potential that is independent of its level of unsaturation.

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