We may not have all the answers to this question, but we do have some pretty good clues.
And one of them may be the Mediterranean diet.
Lets take a look at what the research says.
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During the 28-year study period, the researchers identified a little more than 4,500 people who died from dementia.
The protective benefits of olive oil even extended to those at greatest risk of dementia.
By that we mean those with dementia genes and poor eating habits.
So, how does diet affect the brain?
The Mediterranean diet appears to protect against dementia through its anti-inflammatory and antioxidant properties, says Dr. Lakhan.
The disease-fighting nutrients in olive oil may play an even bigger role in protecting against dementia.
The gut is home to trillions of microorganisms.
Maintaining a healthy balance of microorganisms is good for digestion and health and protects against disease.
Because of thegut-brain connection, the potential health problems include conditions like dementia.
The Mediterranean diet is high in fiber, plant foods, and healthy fats that keep gut bacteria balanced.
Additionally, some evidence shows that following a Mediterranean diet increases a family of microorganisms that benefits brain function.
The diet is shaped like a pyramid.
The base is made up of exercise and eating with friends.
Fish and seafood are the stars of the Mediterranean diet.
Aim for at least two servings a week.
Meat and sweets make up the top of the pyramid and are saved for special occasions.
Mediterranean people also like their wine, but they drink it in moderation.
But it doesnt have to be all or nothing.
Instead,make small tweaksto what you already eat, says Berman.
Choose fish a couple of times per week for heart and brain healthy omega-3 fatty acids.
Switch from butter to olive oil in food preparation whenever possible.
Last but not least, sit down and savor your meals with loved ones!
The Mediterranean diet isnt for weight loss.
To avoid this, make vegetables the star of your meals.
Eating mindfully is also part of the diet, says Berman.
So, pay attention when eating and tune in to your appetite, so you dont overeat.
Do different olive oils, with varying polyphenol contents, affect dementia risk differently?
Could other monounsaturated fat sources offer similar protection?, asks Dr. Lakhan.
Looking ahead, digital medicine may offer promising opportunities for dementia prevention, says Dr. Lakhan.
Research makes it hard to deny the health benefits of the Mediterranean diet.
It may even lower your risk of dementia.
National Institute on Aging.What is dementia?
Symptoms, types, and diagnosis.
Lancet (London, England), 404(10452), 572628. doi: 10.1016/S0140-6736%2824%2901296-0
