In this 8-week randomized controlled trial, 135 Chinese adults ages 50–70 with borderline high total cholesterol consumed 30 grams of one of the following:

Blend 1: cooking oil containing rice bran, flaxseed, and sesame oil
Blend 2: cooking oil containing rice bran, flaxseed, and sesame oil blended in different proportions than blend 1
Refined olive oil

The primary outcomes were triglycerides, and LDL-C, HDL-C, and total cholesterol, measured every two weeks. There were a large number of secondary outcomes, including other blood lipid markers, body composition indices, blood pressure, and markers of glycemic control.

Blended vegetable oils vs. refined olive oil for blood lipids Original paper