Enhancing cognitive health in aging: 5 diets to consider

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As we age, our cognitive abilities naturally begin to decline. However, certain diets can slow this process, enhancing brain health among older individuals.

Here, we discuss some of the best diets for supporting brain health in older individuals.

Mediterranean Diet

The Mediterranean diet, rich in fruits, vegetables, whole grains, legumes, healthy fats like olive oil and nuts, and low in red meat and processed foods, has shown promise in improving cognitive function in older adults, reducing dementia risk.

Studies in the Journal of the American Geriatrics Society and Annals of Neurology suggest better cognitive function and lower Alzheimer’s disease risk, respectively, among older adults who adhere to the Mediterranean diet.


The DASH (Dietary Approaches to Stop Hypertension) diet, designed to lower blood pressure and enhance heart health, emphasizes fruits, vegetables, whole grains, lean proteins, and low-fat dairy products while restricting saturated and trans fats, salt, and added sugars.

Research published in Alzheimer’s & Dementia suggests that older adults on the DASH diet exhibit improved cognitive function.


The MIND (Mediterranean-DASH Intervention for Neurodegenerative Delay) diet combines elements of the Mediterranean and DASH diets, emphasizing fruits, vegetables, whole grains, nuts, beans, and fish, and limiting red meat, butter, cheese, and fried foods.

According to a study in Alzheimer’s & Dementia, older adults who followed the MIND diet showed lower Alzheimer’s disease risk and slower cognitive decline.

Ketogenic Diet

The ketogenic diet, a high-fat, low-carbohydrate diet aimed at inducing a state of ketosis where the body burns fat for fuel instead of carbohydrates, is known for its health benefits such as weight loss and improved blood sugar control.

While the ketogenic diet’s effects on brain health continue to be explored, some studies, including those published in Aging and Frontiers in Aging Neuroscience, suggest it can improve cognitive function and memory in older adults with cognitive impairment.

Vegetarian and Vegan Diets

Vegetarian and vegan diets, abundant in fruits, vegetables, whole grains, and legumes, and low in saturated and trans fats, have shown numerous health benefits, including reduced heart disease and cancer risks.

Additionally, a study in the journal Nutrients found that older adults following a vegetarian or vegan diet exhibited better cognitive function.

In conclusion, numerous diets can benefit brain health in older individuals, with the Mediterranean, DASH, MIND, ketogenic, and vegetarian/vegan diets all showing potential for improved cognitive function and/or dementia risk reduction.

It’s essential to note that these diets are not a one-size-fits-all solution and may need customization to fit individual needs and preferences.

Moreover, it’s crucial to consult with a healthcare professional before initiating any new diet, especially for those with underlying health conditions.

If you care about brain health, please read studies about how the Mediterranean diet could protect your brain health, and Omega-3 fats and carotenoid supplements could improve memory.

For more information about brain health, please see recent studies about antioxidants that could help reduce dementia risk, and higher magnesium intake could help benefit brain health.

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