6 foods that help lower dementia risk, says study

As per the study, diets containing high levels of antioxidants, healthy fat and vitamins and minerals can help reduce the risk of neurodegenerative diseases. (Picture Credit: Pexels)

• A balanced diet rich in nutrients may help lower dementia risk
• Omega-3s, antioxidants, and B vitamins support memory and brain health
• Whole foods like fish, nuts, grains, and veggies are linked to better cognition

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The risk of having dementia is affected by factors other than age. New research likewise indicates that what you eat could play a powerful role when it comes to protecting your brain health. Some nutrients may support memory, cognition and long-term neurological function, experts say.

Dementia affects millions of people the world over, and while there is still no way to completely prevent it, increasingly it seems that diet can play a critical role in maintaining long-term brain health. Some nutrients that may play a role in protecting brain cells and promoting neural communication, for example, can help slow the rate of cognitive decline and cut dementia risks, researchers have found.

The brain is "very susceptible to insufficient nutrients," says Dr Avinash Rao, MD, a neurologist and cognitive health researcher. “The brain needs a constant supply of nutrients to support memory, mental focus and even its structure. Bad eating can speed the process of inflammation, oxidative stress and neuron damage,” he says.

Studies have shown that diets containing high levels of antioxidants, healthy fat and vitamins and minerals can help prevent or slow cognitive decline as well as the risk of neurodegenerative diseases. As we age, nutrients that decrease our inflammation, enhance blood flow to the brain and protect neurons from damage are of particular concern.

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“It’s really more about eating healthy, multi-compound diets than taking off-the-shelf supplements,” Dr Rao says. A well-balanced, whole-foods diet is still the bedrock of brain health. Here are six important nutrients that recent research has pinpointed as having the potential to reduce the risk of dementia and support lifelong cognitive function.

Omega-3 Fatty Acids

They are also essential for the structure of brain cells and for their communication. Omega-3 fatty acids, especially DHA and EPA, support the brain's functions in these areas. They also help with inflammation and support the memory and learning. Found in fatty fish, walnuts and flax seeds, omega-3s have been associated with slower cognitive decline in aging adults.

Vitamin D

Vitamin D is involved in nerve growth and brain immune function. Getting outside in the sun, fortified foods, eggs and fatty fish can help support healthy levels of vitamin D.

B Vitamins (B6, B12, Folate)

Vitamins B are a pathway to control for homocysteine levels, which if they’re high, correlate with cognitive decline. They also help with energy production and nerve health. They are found in leafy greens, whole grains, eggs and legumes.

Antioxidants (Vitamin C and E)

Antioxidants shield brain cells from oxidative stress, one of the culprits behind neurodegeneration. Free radicals are neutralized by Vitamin C and E, supporting brain aging. It can be found in citrus, berries, nuts and seeds.

Magnesium

Also important for nerve signaling, magnesium also assists learning and memory by allowing many neurotransmitters that transmit information between the nerves to function smoothly. Insufficient intake may have negative effects on cognition. Magnesium is abundant in whole grains, nuts and seeds, and leafy greens.

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Polyphenols

Polyphenols are a group of plant-based compounds with powerful anti-inflammatory and neuroprotective properties. They enhance blood flow to the brain and can help with memory. Found in berries, olive oil, dark chocolate, tea and colourful vegetables.

FAQs on how certain foods can help reduce dementia risk:

Q1. Can diet really reduce the risk of dementia?

Yes. A healthy, balanced diet supports brain health by reducing inflammation, oxidative stress and vascular risk factors linked to dementia.

Q2. Which types of foods are linked to lower dementia risk?

Foods rich in antioxidants, healthy fats, vitamins and minerals—such as fruits, vegetables, whole grains, nuts and fish—are associated with better brain health.

Q3. How do fruits and vegetables help protect the brain?

They contain antioxidants and phytochemicals that help reduce oxidative damage and inflammation in brain cells.

Q4. Are healthy fats important for brain health?

Yes. Omega-3 fatty acids found in fatty fish, walnuts and seeds support brain structure, memory and cognitive function.

Q5. Do whole grains play a role in reducing dementia risk?

Whole grains help regulate blood sugar and improve blood flow to the brain, supporting long-term cognitive health.

Disclaimer: This article, including health and fitness advice, only provides generic information. Don’t treat it as a substitute for qualified medical opinion. Always consult a specialist for specific health diagnosis.