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Wine, Mediterranean Diet, and Your Health News for 01/27/2015

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Photo By Dominicp (Own work) [Public domain], via Wikimedia Commons
Photo By Dominicp (Own work) [Public domain], via Wikimedia Commons
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Daily Olive Oil Supplementation Improves Coronary Artery Disease Risk

Olive oil has been implicated over and over again in prevention of

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Photo by Flickr user USDA (http://www.flickr.com/photos/usdagov/6896388410)

cardiovascular disease in many populations. Research has found that the oleic acid and other phenolics in the olive oil contributes to lowered cardiovascular disease risk, specifically interacting with low-density lipoprotein (LDL) and other urinary proteomic biomarkers.

A new study in The American Journal of Clinical Nutrition aimed to evaluate whether or not supplementing a person’s diet with olive oil had any effect on various urinary proteomic biomarkers for coronary artery disease, chronic kidney disease, and diabetes. Additionally, two olive oil treatments were compared: one with low levels of phenolics or one with high levels of phenolics.

69 healthy people participated in this study and were randomly assigned supplementation with either high phenolic olive oil, or low phenolic olive oil. Supplementation occurred daily over a period of 6 weeks. Daily doses were 20mL.

Low phenolic olive oil was categorized as containing 18mg caffeic acid equivalents per kg, while high phenolic olive oil was categorized as containing 286mg caffeic acid equivalents per kg.

Urinary proteomic biomarkers, blood lipids, antioxidant capacity, and glycation markers were measured were measured at baseline, 3 weeks, and 6 weeks after daily olive oil supplementation.

Important Findings

  • Daily supplementation of both olive oils reduced biomarker levels for coronary artery disease.
  • Daily supplementation of both olive oils had no influence on biomarker levels of chronic kidney disease or diabetes.
  • There were no significant differences in reduction of disease biomarkers between olive oil with low levels of phenolics versus olive oil with high levels of phenolics.

The results of this study indicate that supplementation with olive oil improved coronary artery disease risk based on urinary proteomic

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Photo by Flickr user Smabs Sputzer (http://www.flickr.com/photos/10413717@N08/6825479819)

biomarkers in healthy adults. On the other hand, olive oil supplementation did not seem to influence chronic kidney disease or diabetes risk based on urinary proteomic biomarkers.

Finally, there were no significant differences between the high and low phenolic doses of olive oil supplements, indicating that low dose of 18mg caffeic acid/kg is just as good as a high dose of 286mg caffeic acid per kg in reducing coronary artery disease risk.

Source:

Silva, S., Bronze, M.R., Figueira, M.E., Siwy, J., Mischak, H., Combet, E., and Mullen, W. 2015. Impact of a 6-wk olive oil supplementation in healthy adults on urinary proteomic biomarkers of coronary artery disease, chronic kidney disease, and diabetes (types 1 and 2): a randomized, parallel, controlled, double-blind study. The American Journal of Clinical Nutrition: ajcn.114.094219v1101/1/44.

Wine, Mediterranean Diet, and Your Health News for 01/23/2015

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Photo by Flickr user NatalieMaynor (https://www.flickr.com/photos/nataliemaynor/2539111053)

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Wine, Mediterranean Diet, and Your Health News for 01/16/2015

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Wine, Mediterranean Diet, and Your Health News for 01/14/2015

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