Journal #3. Want to keep your brain in tip-top shape and reduce the risk of dementia?
Flavonoids: everyday nutrition for cognitive performance
What you eat does more than support physical health. It also helps shape how your brain performs over time.
Flavonoids are naturally occurring plant compounds found in many colourful fruits, vegetables, herbs, tea and cacao. They are part of a broader family of plant nutrients called polyphenols, and they are increasingly being studied for their role in healthy ageing, circulation, inflammation and cognitive function.
For anyone thinking about long-term cognitive performance, that makes them worth understanding.
What the research suggests
One large long-term study from Harvard University followed more than 77,000 middle-aged adults over 20 years. It found that people with higher habitual flavonoid intake were less likely to report declines in aspects of cognitive function than those with lower intake.
In that research, people consuming around 600 mg of flavonoids a day had a 20% lower risk of subjective cognitive decline than those consuming around 150 mg a day. Higher intake of flavones — a subgroup found in foods such as peppers, celery and some citrus fruits — was associated with an even lower risk.
This does not mean flavonoids prevent dementia or guarantee cognitive health. Cognitive decline is influenced by many factors, including age, genetics, sleep, physical activity, cardiovascular health, stress, social connection and overall diet.
But it does reinforce an important idea: the foods you eat consistently can contribute to the long-term environment your brain operates in.
Why flavonoids matter
Flavonoids are being studied for several potential mechanisms that may support brain health, including antioxidant activity, healthy inflammatory responses and blood flow.
Healthy circulation matters because the brain needs a steady supply of oxygen and nutrients to perform well. A diet rich in plant foods also brings many other beneficial nutrients, including fibre, vitamins and minerals.
The goal is not to find one “brain food.” It is to build a pattern of eating that gives your brain more of what it needs, more often.
Simple ways to include more flavonoid-rich foods
You do not need to overhaul your diet overnight. Start by adding more colour and variety across the week.
- Berries: blueberries, blackberries, strawberries and cherries
- Citrus: oranges, grapefruit, lemons and limes
- Other fruits: apples, pears and grapes
- Vegetables: broccoli, kale, spinach, red cabbage, celery, onions and peppers
- Herbs and spices: parsley and other fresh herbs
- Drinks and treats: tea, cacao and dark chocolate
Red wine also contains flavonoids, but it is not necessary — or advisable — to drink alcohol for brain health. The same plant compounds can be found in many non-alcoholic foods and drinks.
Support your cognitive performance
The habits you practise every day have the biggest influence on how your brain performs. Nutrition is one part of that picture, alongside sleep, movement, stress management, recovery and connection.
For people looking for additional support, Brain Health was developed by Natural Medicine Neuroscientist Megan Wilks and has been trusted by practitioners since 2015.
Its botanical formula includes carefully selected flavonoid-rich extracts designed to support cognitive function, mental clarity, healthy mood balance and everyday brain resilience.
At The Vitalogy Project, we believe cognitive performance is built through the small things you do consistently — including what you put on your plate.
👉 Learn more about Brain Health.
