Previous work in this laboratory had shown in a pilot study that canola oil could lower blood pressure and serum cholesterol levels. Attempting to extend this work to a larger cohort over a longer period, a 4-month study using a 30 ml/day addendum of canola oil as the replacement of the edible oils in the usual diet was undertaken in 36 hypercholesterolemic and/or hypertriglyceridemic subjects. Serum low-density-lipoprotein cholesterol (LDL-C) decreased from 173 +/- 9.0 to 160 +/- 10.0 mg/dl, p less than 0.025. Blood pressure, total cholesterol, and high-density-lipoprotein cholesterol (HDL-C) did not change significantly even though the HDL subfractions did, HDL2 decreasing and HDL3 increasing.
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