The consumption of these 4 foods significantly reduces dementia risk

Could a diet rich in flavonoids really prevent dementia? The question is generating increasing interest. A recent study reveals promising results that deserve our attention.


Researchers from Queen's University Belfast have observed the effect of certain foods on brain health. Their study suggests that the consumption of berries, dark chocolate, tea, and red wine could play a role in reducing the risk of dementia.

The study, published in JAMA Network Open, analyzed data from over 120,000 British adults. These participants, aged 40 to 70, were followed over several years. Their eating habits, particularly their intake of flavonoids, were compared with the onset of dementia.

The results are clear: people who consumed flavonoid-rich foods daily had a 28% reduced risk of dementia, according to the study's data. This benefit was even more pronounced in those with high-risk factors, such as hypertension or symptoms of depression. The researchers emphasized that these particularly vulnerable populations enjoyed increased protection against cognitive decline, further highlighting the importance of a diet tailored 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, which are beneficial for the brain. Their benefits are not limited to the brain, though. Several studies show they are also good for heart health. A diet rich in flavonoids could thus act on multiple levels for our health.

These findings are not a miracle cure, but they offer an interesting avenue for dementia prevention. While we await effective treatment, nutrition seems to be a path worth exploring to reduce risks.

What is a flavonoid?

Flavonoids are phytochemical compounds primarily found in plants. Present in fruits, vegetables, leaves, and even in some drinks like tea and red wine, they play a significant role in human health.

These molecules are renowned for their antioxidant effects, meaning their ability to neutralize free radicals. The latter are unstable molecules that can cause cellular damage, which is linked to various diseases, including cancer and neurodegenerative disorders.

In addition to their antioxidant properties, flavonoids also have anti-inflammatory and antiviral effects. They also promote blood circulation, especially in the brain, thus helping to protect cognitive functions and reduce the risk of dementia.

How do flavonoids protect the brain?

Flavonoids act like shields for brain cells. They reduce neuroinflammation, a process linked to several neurodegenerative diseases, including dementia and Alzheimer's. By limiting this inflammation, they help preserve connections between neurons.

These compounds also improve blood circulation in the brain. Better blood flow brings more oxygen and essential nutrients, promoting cognitive health. This action helps maintain optimal brain functions, even as we age.

Finally, some research suggests that flavonoids may inhibit the accumulation of beta-amyloid plaques, a major factor in Alzheimer's disease. These plaques are toxic to nerve cells and disrupt communication between neurons.