Extra-Virgin Olive Oil Protects the Aging Brain

We know that eating a healthy diet plays a significant role in how well we will age and the Mediterranean diet, rich in fish and fresh vegetables, has long been held up as an example of an excellent diet that promotes healthy aging.  But new research has found that extra-virgin olive oil specifically, an integral part of the diet, helps protect the brain against cognitive decline and dementia.

Researchers from the Lewis Katz School of Medicine at Temple University have found that extra-virgin olive oil reduces inflammation and help cells in the brain clear out toxins and debris, including the plaques and tangles associated with Alzheimer’s Disease and dementia.

The study, published recently in the journal Annals of Clinical and Translational Neurology, compared the cognitive function of mice fed a regular diet and those with olive oil added to their food.  After a period of 9 months and 12 months on the enriched diet, mice performed significantly better on tests that demonstrated working memory, spatial memory and learning ability.

Researchers studying the brain tissue of both groups of mice also discovered a difference in the synapses between neurons which were better preserved in the mice who ate the enriched diet.  More study in required to determine if extra-virgin olive oil when added to the diet can help stop or even reverse symptoms of dementia.

Meanwhile, it seems like a good idea to start adding a high quality extra-virgin olive oil to your daily diet.  But not all olive oil is created the same; it important to ensure the oil is not rancid or it will not hold the same health benefits.  Look for a seal of approval, such as the California Olive Oil Council’s seal, on the label.   When in doubt, use your sense of smell, if the oil has an unpleasant odor, return it.  Olive oil can be stored at room temperature in a dark cupboard for about two years.  Longer than that and it can begin to degrade, losing the valuable antioxidants and omega-3 fatty acids.

To learn more about the study read the full publication by following this link.