Health Studies

Although there is no current treatment proven to cure Alzheimer's disease or dementia, there are promising research results showing a clear connection between diet and brain health. Several large scale scientific studies of the Mediterranean Diet, as well as smaller studies on specific foods and spices, point to the important role played by diet in the cause, prevention and management of Alzheimer’s. A healthful diet is now widely acknowledged to boost overall brain health and cognitive function and even potentially delay the onset of dementia symptoms and Alzheimer's.

Senior Living Residences is committed to advancing public knowledge about this research in an effort to control the advance of Alzheimer's disease, rated as the second most feared illness after cancer.

Articles and Research Study Summaries

Mediterranean Diet Boosts Brain Health

2014 AUSTRALIAN STUDY

An Australian study published in Molecular Psychiatry in 2014 followed 527 healthy older adults in three different dietary pattern groups (Australian-style Mediterranean, Prudent/healthy, and Western) over a 3-year period. Researchers found that in participants with a genetic predisposition to Alzheimer's disease, a high adherence to the Australian-style Mediterranean diet (high in fruits, vegetables, legumes, grains, and fish) was associated with better executive function (the set of mental processes used in planning, strategizing, remembering details, and managing time and space.)

2013 SPANISH STUDY

One of the largest human clinical diet trials to date, which followed 7,447 individuals for a median of 4.8 years, showed that following the Mediterranean Diet can dramatically reduce your risk of heart attack and stroke by 30%, even when you are at high risk for cardiovascular disease. This is a seminal study also for brain health since brain health is so closely linked to heart health.

The researchers in Spain also discovered that adding two healthy fats to the basic Mediterranean Diet each day had an even more beneficial impact on brain health. In the study, people who consumed extra virgin olive oil and a handful of nuts daily were less likely to show the early signs of dementia than those who stuck to the basic Mediterranean diet. The nuts used in the study were walnuts, almonds and hazelnuts and the olive oil was specifically “extra virgin”.

“Our findings support increasing evidence on the protective effects of the Mediterranean Diet on cognitive function,” Miguel Martinez-Gonzalez of the University of Navarra in Spain and colleagues reported in the Journal of Neurology, Neurosurgery and Psychiatry.

2009 NEW YORK STUDY

A comprehensive study published in 2009 by Nikolaos Scarmeas, M.D., and colleagues at Columbia University Medical Center, New York, found that individuals who follow a Mediterranean-type diet had a 32-40% decreased risk for developing Alzheimer's disease. This is due to the Mediterranean diet's proven positive effects on improving cholesterol, blood sugar levels, and blood vessel health, as well as reducing inflammation, all of which have been associated with Mild Cognitive Impairment and Alzheimer's disease. This study followed 1,875 individuals for 4.5 years.

Download the original studies:

LEARN MORE ABOUT THE MEDITERRANEAN DIET

  • Additional studies documenting the many health benefits of the Mediterranean Diet from Oldways.com
  • Click here to learn more about the specific foods and spices in the Mediterranean Diet

Proven Benefits of Cinnamon on Brain Health

Cinnamon, a potent antioxidant and anti-inflammatory, is full of health benefits for the body and brain. It’s so good for us, in fact, that scientists actually recommend a daily dose of cinnamon – from ½ to 1 teaspoon a day! This recommendation is based on various studies that have been conducted over the last decade. (As a cautionary note: Do not exceed 3 teaspoons of cinnamon a day. In small amounts cinnamon is a healing agent; in excessive amounts it can stress the liver.)

A study published in January 2011 is the first to actually test cinnamon's direct effect on the brain. Researchers concluded that cinnamon could yield potential benefits against Alzheimer's disease because of its impact on significantly decreasing the accumulation and toxic "clumping" of amyloid beta protein, the substance associated with the plaque formation and nerve destruction in Alzheimer's disease.

Other studies, including this one conducted in 2010, concluded that cinnamon has a proven positive impact on heart health and diabetes. Scientists now know that what's good for the heart and effective at combatting diabetes is also good for the brain. This is because of the mounting evidence that heart disease, high blood pressure, stroke, diabetes and high cholesterol are all risk factors for Alzheimer's disease and other dementias.

The Connection Between Diabetes and Alzheimer's

This Alzheimer's Association fact sheet provides a good explanation of how insulin resistance, high blood sugar and diabetes may harm the brain.

The Alzheimer's Association Advocates that Everyone Adopt a Brain Healthy Diet

We Can Help Adopt a Brain Healthy Diet by the Alzheimer's Association
The Alzheimer's Association says, "According to the most current research, a brain-healthy diet is one that reduces the risk of heart disease and diabetes, encourages good blood flow to the brain, and is low in fat and cholesterol. Like the heart, the brain needs the right balance of nutrients, including protein and sugar, to function well."