Did you know? Olive oil has long been recognized for its unusual fat content. This plant oil is one of the few widely used culinary oils that contains about 75% of its fat in the form of oleic acid (a monounsaturated, omega-9 fatty acid). In terms of monounsaturated fat, the closest common culinary oil to olive is canola oil, with about 60% of its fat coming in monounsaturated form. By contrast, the fat in soybean oil in only 50-55% monounsaturated; in corn oil, its about 60%; in sunflower oil, about 20%; and in safflower oil, only 15%. When diets low in monounsaturated fat are altered to increase the monounsaturated fat content (by replacing other oils with olive oil), research study participants tend to experience a significant decrease in their total blood cholesterol, LDL cholesterol, and LDL:HDL ratio. Recent research studies have taken these heart-healthy effects of olive oil one step further. Olive oils monounsaturated fat content (specifically, its high level of oleic acid) has now been determined to be a mechanism linking olive oil intake to decreased blood pressure. Researchers believe that the plentiful amount of oleic acid in olive oil gets absorbed into the body, finds its way into cell membranes, changes signaling patterns at a cell membrane level (specifically, altering G-protein associated cascades) and thereby lowers blood pressure. To our knowledge, this is the first time that the monounsaturated fat content of olive oil has been linked not only to cholesterol reduction, but also to reduction of blood pressure.
Posted on: Mon, 28 Jul 2014 23:00:00 +0000
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