As we get older, our brains change. It’s common to see small shifts, like taking a little longer to remember a name or needing more time to focus.
While these changes are a normal part of aging, many people want to keep their brains healthy for as long as possible. Diet is one area that often comes up, especially foods that promote better brain and heart health.
One of the most talked-about options is the MIND diet, a blend of the Mediterranean and DASH diets. Both have been shown to help lower the risk of heart disease and stroke. Some researchers also believe these diets might protect against dementia.
We spoke with Parichita Choudhury, MD, a cognitive neurologist with Banner Sun Health Research Institute, to better understand the MIND diet, its benefits and limits and how to think about it as part of a healthy lifestyle.
What is the MIND diet?
The MIND (Mediterranean-DASH Intervention for Neurodegenerative Delay) diet combines two proven eating plans: the Mediterranean and DASH diets.
“The Mediterranean diet is known for supporting heart health, lowering inflammation and reducing the risk of chronic disease,” Dr. Choudhury said. “It focuses on whole, plant-based foods and healthy fats and limits red meat, processed foods and saturated fats.”
The DASH diet, or Dietary Approaches to Stop Hypertension, is designed to help lower blood pressure. It limits sodium, red meat, sweets and foods high in saturated fat and focuses on whole grains, fruits and vegetables and lean proteins.
“The DASH diet helps protect the heart and blood vessels,” Dr. Choudhury said. “Since heart health and brain health are closely linked, this diet supports healthy aging as well.”
What can you eat on the MIND diet?
Dr. Choudhury said one reason the MIND diet has become so popular is that it is easy to follow.
“Whereas Keto, intermittent fasting and other plans can be very strict, the MIND diet is usually the easiest to start and stick to. You can make small changes and still see benefits.”
The MIND diet encourages you to eat:
- Leafy green vegetables
- Other vegetables
- Berries
- Nuts and seeds
- Beans
- Whole grains
- Fish
- Poultry (chicken, turkey)
- Olive oil
Dieters must limit the following:
- Red meat
- Butter and stick margarine
- Cheese
- Pastries and sweets
- Fried and fast food
What does the research really say?
There has been a lot of interest in the MIND diet because early observational studies showed that people who ate this way had a lower risk of dementia. But these studies can’t prove cause and effect.
“There are mixed results,” Dr. Choudhury said. “Many of these studies looked at people who already tended to eat healthier overall, so it’s hard to know how much of the benefit came from diet alone.”
One study compared people following the MIND diet with those following a lower-calorie diet. At the end of the study, there was no major difference in memory between the groups. Both groups showed small improvements.
“The results don’t mean the MIND diet doesn’t help,” Dr. Choudhury said. “Healthy eating of any kind can support your brain, so small changes still matter.”
Another large study, called the U.S. POINTER study, looked at the MIND diet alongside exercise and cognitive activities (such as memory exercises). When people combined all these healthy habits, they saw better results.
“The key message is that diet works best when it’s part of a whole healthy lifestyle,” Dr. Choudhury said. “This includes good sleep, exercise, staying mentally active and managing medical conditions.”
Why doctors still support the MIND diet
Even with mixed study results, the MIND diet remains a common recommendation for older adults. Here’s why:
- It supports heart health, which is closely tied to brain health.
- It focuses on whole foods and healthy fats.
- It’s easier to stick with than strict or trendy diets.
- It encourages steady, long-term habits.
This also helps clear up confusion about extreme claims. For example, you might have heard of the Bredeson Protocol, which says it can reverse Alzheimer’s disease using diet and supplements. While its parts (like eating healthy, exercising, and sleeping well) are good for you, there’s no scientific proof that it can reverse dementia. This raises concerns about wasting money and time.
“There is no strong evidence that this protocol can cure or reverse Alzheimer’s,” Dr. Choudhury said. “The MIND diet is safer, better studied and more realistic.”
Why personalized advice matters
While the MIND diet is generally healthy, it’s not one-size-fits-all. Some people have medical conditions or take medications that require adjustments.
For example:
- If you take warfarin, you may need to keep the vitamin K from leafy greens consistent.
- People with kidney disease may need to limit certain nutrients.
- People with sleep apnea, diabetes or high blood pressure may need a tailored plan.
Before making any dietary changes, speak with your health care provider, a registered dietitian or a Banner Health specialist. They can provide personalized advice.
How to start the MIND diet
You don’t have to overhaul your entire diet. Dr. Choudhury encourages starting small so changes feel doable.
“Don’t expect to change overnight,” she said. “Set a goal and if you meet half of it, that’s still progress. This diet is a continuum. You can keep working toward your goal.”
Here are some simple ways to begin:
- Make half your plate green: Aim to fill half your plate with vegetables at one meal a day. Work up from there.
- Swap red meat for fish or poultry: If you eat a lot of red meat, try replacing one or two meals a week with fish or poultry.
- Use olive oil instead of butter: This is a quick switch that supports heart and brain health.
- Add berries regularly: Berries, especially blueberries, have strong research linking them to memory support.
- Choose nuts, beans and whole grains: They add fiber, protein and healthy fats.
- Try easy breakfast swaps: If you don’t love leafy greens, blend them into a breakfast smoothie. Eat Greek yogurt with berries.
- Pick fruit more often for dessert: You don’t have to eliminate sweets completely. Just shift toward fruit when you can.
Diet works best with other healthy habits
The MIND diet is most effective when combined with other lifestyle habits:
- Regular exercise helps blood flow to the brain.
- Good sleep supports memory and focus.
- Limiting alcohol protects long-term brain health.
- Quitting smoking lowers dementia risk.
- Mental activities like reading and puzzles keep your brain active.
“All of these things work together,” Dr. Choudhury said. “The more healthy habits you combine, the more likely you are to protect your brain.”
[Also read: 5 Ways to Keep Your Brain Sharp As You Age.]
The bottom line
The MIND diet won’t cure or reverse Alzheimer’s disease and it may not work the same for everyone. But it can help you build healthier eating habits that support your brain and overall well-being as you age.
You don’t have to be perfect. You just have to start.
If you have questions about the MIND diet, talk to your provider or a Banner Health specialist.
