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1 .This is Scientific American 60-Second Science. I'm Christopher Intagliata. Got a minute?
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2 .Olive oil is thought to be healthy because it's mostly monounsaturated fat.
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3 .But cold-pressed extra-virgin olive oil may have an extra benefit:
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4 .it appears to be more filling than other fats.
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5 .That's according to research presented at a German symposium on fat.
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6 .Researchers started by feeding 120 volunteers a daily, 18-ounce serving of low-fat yogurt.
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7 .But mixed in the yogurt were either three tablespoons of either extra-virgin olive oil, canola oil, butter, or lard.
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8 .Turns out volunteers in the olive oil group reported feeling more full during the three-month study period.
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9 .And they had larger concentrations of serotonin in their blood, a signal of satiety.
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10 .The researchers say extra-virgin olive oil contains aromatic compounds that block the absorption of glucose from the blood, delaying the recurrence of hunger.
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11 .Indeed, study subjects who ate yogurt with just olive oil extract consumed fewer calories over a three-month period than those who ate plain yogurt.
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12 .And they finished the trial with less body fat too.
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13 .Which leads these researchers to conclude that olive oil extract could be key to creating a better low-fat snack: tastes great, more filling.
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14 .Thanks for the minute, for Scientific American 60-Second Science. I'm Christopher Intagliata.
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