What Is The MIND Diet?

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The MIND diet, as the name implies, should promote a healthy mind and reduce the risk of Alzheimer’s disease. It is a mash-up of the Mediterranean diet and the DASH diet – two diets that have been found to have several health benefits. The foods highlighted on the MIND diet include whole grains, berries, green leafy vegetables, other vegetables, olive oil, poultry and fish.

Only a few epidemiological studies have been published on the MIND diet. Key findings show that compliance with the MIND diet is associated with a reduced risk of Alzheimer’s disease.

More research is likely to come, but findings are consistent with recommendations of the Dietary Guidelines for Americans, which recommend increased consumption of fruits, vegetables, lean proteins, healthy fats and whole grains, and decreased consumption of saturated fats.

MIND stands for Mediterranean-DASH Intervention for Neurodegenerative Delay. It was developed by a nutritional epidemiologist, Martha Clare Morris, at Rush University Medical Center through a study that was funded by the National Institute on Aging. Her goal was to lower the risk of Alzheimer’s disease by promoting a diet consisting of brain-healthy foods.

The Mediterranean diet focuses on eating foods that are as natural as possible, while limiting unhealthy fats and red meat. The DASH (Dietary Approaches to Stop Hypertension) diet, as its name suggests, is aimed at helping to ease hypertension. It focuses on helping people to eat foods that can lower their sodium intake and blood pressure.

The Basics of the MIND Diet
For many years, researchers have examined the relationship between the foods we eat and their effects on our health. In 2015, researchers began to specifically examine the relationship between certain foods and their effect on brain health with the intention of (1) slowing the decline of brain health as we age and (2) reducing the risk of the development of Alzheimer’s disease. Thus, the “MIND” diet was created.

The MIND diet stands for Mediterranean-DASH Intervention for Neurodegenerative Delay. This diet combines principles from two other well-known diets: the Mediterranean diet and the DASH (Dietary Approaches to Stop Hypertension) diet. The Mediterranean diet is inspired by the traditional eating habits of those in Mediterranean countries. The DASH diet was developed as a result of clinical trials funded by the National Heart, Lung and Blood Institute (NHLBI). In the MIND diet, parts of these diets have been combined with a new goal: reduce dementia and a decline in brain health that usually occurs as we age. Specifically, the MIND diet differs from the Mediterranean and DASH diets in a few ways: It emphasizes berries, due to their antioxidant properties, over other fruits and recommends eating fish at least once per week. It also highlights the difference between green, leafy vegetables, which are rich in many nutrients and thought to reduce the risk of CVD and cognitive decline, and “other vegetables.” The MIND diet argues that both green leafy vegetables and other vegetables are essential.

Morris told Live Science in a 2015 article that the researchers focused on this mix of two-well-known, healthy diets because it would be easy for Americans to follow. The MIND diet recommends eating 10 foods daily and avoiding five types of foods. The healthy-food group contains:

  • Vegetables
  • Green leafy vegetables in particular
  • Berries, especially blueberries
  • Nuts
  • Beans
  • Wine
  • Whole grains
  • Fish
  • Poultry
  • Olive oil

The five unhealthy foods are:

  • Fried or fast food
  • Red meats
  • Cheeses
  • Butter and stick margarine
  • Pastries and sweets

The rules of the diet are:

  • Get at least three servings of whole grains per day
  • Eat a salad each day
  • Eat one other vegetable every day
  • Drink a glass of wine each day
  • Snack almost every day on nuts
  • Eat beans every other day
  • Consume poultry and berries at least twice a week
  • Consume fish at least once a week
  • Unhealthy foods are allowed, but less than one serving per week, with the exception of butter
  • Less than 1 tablespoon a day of butter is allowed per day

MIND Diet and Health
Both the Mediterranean and DASH diets have been researched thoroughly and are associated with lower blood pressure, a decreased risk of cardiovascular disease and Type 2 diabetes. In contrast, there are only a handful of epidemiological studies examining the MIND diet’s effect on brain health and cognitive function. So far, the results have shown the MIND diet to be associated with slowing cognitive decline and a reduced risk for Alzheimer’s disease.

One of the theories behind its health benefits is that foods emphasized on the MIND diet are rich in antioxidants, which can reduce oxidative stress. Oxidative stress is defined as an imbalance between the production of free radicals and antioxidant defenses, and prolonged exposure can cause cell damage – particularly to the brain. Additionally, because the MIND diet is a combination of the Mediterranean diet and DASH diet, it’s thought to have a similar effect on improving heart health and reducing the risk of CVD and diabetes, both of which are risk factors for Alzheimer’s disease.

Although the MIND diet – in conjunction with other healthy habits like regular exercise, not smoking and getting adequate sleep – may have an effect on cognition, many other factors impact the development of Alzheimer’s disease and presently, there is no cure for it.

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