Memory Digest

The MIND Diet

What the MIND diet is, what foods it emphasizes, and what the research—including a 2023 clinical trial—really shows.

Last reviewed: October 2026

The MIND diet is an eating pattern designed specifically with brain health in mind. Its name stands for Mediterranean-DASH Intervention for Neurodegenerative Delay. It combines two well-studied diets—the Mediterranean diet and the DASH diet (for blood pressure)—and emphasizes foods linked in research to better brain aging.

What to eat

The MIND diet encourages 10 brain-healthy food groups:

• Green leafy vegetables (spinach, kale, collards, lettuce) – at least six servings a week
• Other vegetables – at least one a day
• Berries (especially blueberries and strawberries) – at least two servings a week
• Nuts – most days of the week
• Beans and legumes – several times a week
• Whole grains – three servings a day
• Fish – at least once a week
• Poultry – at least twice a week
• Olive oil – as the main cooking oil
• Wine – the original study allowed up to one glass a day, but current advice is that non-drinkers should not start drinking for brain health, and less alcohol is better

What to limit

• Red and processed meats
• Butter and stick margarine (less than a tablespoon a day)
• Cheese (less than once a week)
• Pastries and sweets
• Fried and fast food

What the research shows

The original studies

In 2015, researchers at Rush University reported on more than 900 older adults in Chicago followed for about 4.5 years. Those whose diets most closely matched the MIND pattern had a 53% lower rate of Alzheimer's disease than those with the lowest scores, and even moderate adherence was linked to a 35% lower rate. Another analysis found that high adherence was linked to slower cognitive decline—equivalent to being about 7.5 years younger cognitively.

These were observational studies: they show an association, but people who eat healthily may differ in many other ways (education, exercise, income), so they can't prove the diet itself caused the benefit.

The clinical trial

In 2023, the New England Journal of Medicine published a three-year randomized trial of 604 older adults without cognitive impairment who were overweight and had suboptimal diets. One group followed the MIND diet with mild calorie restriction; the other followed their usual diet with the same mild calorie restriction. Both groups improved on cognitive tests, and there was no significant difference between them. Brain MRI changes were also similar.

What does that mean? It may be that the trial was too short, that both groups benefited from attention to diet and weight loss, or that the control group also ate more healthily. It means the MIND diet is not a proven way to prevent dementia, but healthy eating patterns remain reasonable and good for overall health.

The bigger picture

Many studies link Mediterranean-style eating with lower rates of heart disease, stroke and diabetes—all risk factors for dementia. Diet is also one component of multidomain programs such as FINGER and U.S. POINTER, which showed modest benefits for thinking. See Reducing Dementia Risk: The 14 Risk Factors.

Getting started

You don't have to be perfect. Small changes count:

• Add a salad or a handful of greens to one meal a day.
• Keep frozen berries for breakfast or snacks.
• Swap butter for olive oil.
• Snack on a small handful of unsalted nuts.
• Make one or two meals a week meatless with beans or lentils.
• Eat fish once a week—canned salmon or sardines are affordable options.
• Choose whole-grain bread, oats and brown rice.

Cautions

• People with swallowing problems, kidney disease, food allergies, or who take blood thinners like warfarin (which interacts with vitamin K in leafy greens) should talk to their doctor or a dietitian before changing their diet.
• For people with dementia who are losing weight, getting enough calories may matter more than the type of food.
• Be wary of supplements claiming to replace a healthy diet; most haven't shown benefit for memory.

The bottom line

The MIND diet is a sensible, flexible way to eat that's good for your heart and body and may support your brain. It isn't a guaranteed shield against dementia—but combined with exercise, sleep, social connection and managing blood pressure, it's part of an overall healthy lifestyle.

Sources

1. Morris MC et al. MIND diet associated with reduced incidence of Alzheimer's disease. Alzheimer's & Dementia, 2015
2. Barnes LL et al. Trial of the MIND Diet for Prevention of Cognitive Decline in Older Persons. New England Journal of Medicine, 2023
3. National Institute on Aging: What Do We Know About Diet and Prevention of Alzheimer's Disease?
4. Mayo Clinic: Healthy lifestyle—Mediterranean diet

Not medical advice. This article is general information, not a diagnosis or treatment plan for any individual. Talk with a doctor about your situation.

Related articles

• Reducing Dementia Risk: The 14 Risk Factors
• How to Improve Your Memory