As of: March 28, 2024, 6:30 a.m
By: Judith Braun
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Some properties of olive oil could have a positive effect on the brain and thus protect against dementia mortality. A study comes to this conclusion.
More and more people are suffering from dementia these days. However, the condition can be prevented with a healthy lifestyle. Diet, among other things, plays a crucial role. Some foods are said to be able to reduce the risk of dementia. According to scientific findings, this also includes regular consumption of olive oil.
Preventing dementia with olive oil: Study shows positive effect on brain health
Regular consumption of olive oil protects the brain - and reduces the risk of dementia mortality. © HalfPoint Images/IMAGO
In their study, a team of scientists from Harvard University analyzed the connection between diet and dementia-related deaths using nutritional questionnaires and death certificates, as reported by
Mitteldeutscher Rundfunk (MDR)
. The data was collected from more than 90,000 U.S. residents over a period of three decades. Of the participants, a total of 4,749 people died of dementia.
When analyzing the information about the participants' diet, it was ultimately shown that the risk of dementia-related death is around 30 percent lower for people who eat more than half a tablespoon of olive oil per day than for people who never or rarely consume olive oil. In addition, people who replace a teaspoon of mayonnaise or margarine with olive oil every day still have an eight to 14 percent lower risk of dying from dementia.
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Olive oil promotes a healthy brain - regardless of other diet
The study found the connection between olive oil and dementia mortality regardless of other diet. The researchers therefore suspect that certain properties of olive oil have a positive effect on the brain. According to first author Anne-Julie Tessier, “some antioxidant compounds in olive oil could cross the blood-brain barrier and possibly have a direct effect on the brain.” It is also possible that olive oil has an indirect influence on brain health by promoting cardiovascular health.
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