Described is a fat or oil compositi

Described is a fat or oil composition Which comprises at
least 35 Wt. % of a diacylglycerol, the constituent fatty acids
of said diacylglycerol satisfying the folloWing equation: (an
amount of a cis-form unsaturated fatty acid)/(an amount of
a saturated fatty acid+an amount of a trans-form unsaturated
fatty acid)§6. Usual intake of the above-described compo
sition as an edible oil makes it possible to reduce arterio
sclerotic factors in blood, leading to the prevention of
arteriosclerosis, furthermore, various degenerative diseases.