Could a diet rich in flavonoids really prevent dementia? The question is attracting more and more interest. A recent study reveals promising results that deserve our attention.
Researchers at Queen’s University Belfast have observed the effect of certain foods on brain health. Their study suggests that consumption of berries, dark chocolate, tea and wine rouge could play a role in reducing the risks of dementia.
The study, published in JAMA Network Openanalyzed the data of more than 120,000 British adults. These participants, aged 40 to 70, were followed for several years. Their dietary habits, particularly their consumption of flavonoids, have been compared to the onset of dementia.
The results are clear: people who consumed foods rich in flavonoids daily saw their risk of dementia reduced by 28%, according to study data. This benefit was even more pronounced in those with high risk factors, such as hypertension or symptoms of depression. The researchers highlighted that these particularly vulnerable populations benefited from increased protection against cognitive decline, thus reinforcing the importance of a diet adapted to their health profile.
Flavonoids are phytochemicals found in certain foods such as fruits, tea and red wine. They are known for their antioxidant and anti-inflammatory properties, benefits for the brain. Their benefits are not limited to the brain. Several studies show that they are also beneficial for heart health. A diet rich in flavonoids could therefore act on several levels on our health.
These discoveries are not a miracle solution, but they offer an interesting avenue for the prevention of dementia. While waiting for effective treatment, diet seems to be an avenue to explore to reduce the risks.
What is a flavonoid?
Flavonoids are phytochemicals found primarily in plants. Present in fruits, vegetables, leaves, and even certain drinks such as tea and red wine, they play an important role in human health.
These molecules are known for their antioxidant effects, that is to say their ability to neutralize free radicals. The latter are unstable molecules that can cause cellular damage, linked to various diseases such as cancers and neurodegenerative disorders.
In addition to their antioxidant properties, flavonoids also have anti-inflammatory and antiviral effects. They also promote blood circulation, particularly in the brain, thus helping to protect cognitive functions and reduce the risk of dementia.
How do flavonoids protect the brain?
Flavonoids act as shields for brain cells. They reduce neuroinflammation, a process linked to several neurodegenerative diseases, including dementia and Alzheimer’s. By limiting this inflammationthey help preserve connections between neurons. These compounds also improve blood circulation in the brain. Better blood flow brings moreoxygen and essential nutrients, which promotes cognitive health. This action helps maintain optimal brain function, even as we age.
Finally, some research suggests that flavonoids may inhibit the buildup of beta-amyloid plaques, a major factor in Alzheimer’s disease. These plaques are toxic to nerve cells and disrupt communication between neurons.
