Fat In Olive Oil Repairs Failing Hearts, Study Finds

For broken rat hearts, nothing beats a healthy glug of olive oil.

That’s what new research published in the journal Circulation found when it looked at beating rat hearts riddled with heart failure, a condition that manifests itself in humans over time when chronic high blood pressure makes it harder for the heart to pump blood, making the heart grow bigger, thicker, and less effective. The heart becomes unable to metabolize and store the fat it needs to keep pumping—like an engine out of fuel, the study author says—and the fat it does manage to metabolize breaks down into toxic by-products that exacerbate heart disease.

It’s a complicated problem without an obvious quick fix, which is why researchers were surprised by what came next.

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