A study from Rush University Medical Center in Chicago suggests that certain dietary patterns can prevent the buildup of beta-amyloid plaques in the brain, a hallmark sign of Alzheimer’s disease
Healthy dietary patterns, including the MIND and Mediterranean diets, have been associated with a slower rate of cognitive decline and protection against Alzheimer’s disease.
Participants in the current analysis, average age of 84 at the start of the study, had agreed to donate their brains at death to advance dementia research. The Mediterranean diet score was determined by measuring consumption of 11 dietary components, including whole grains, fruits, vegetables, beans/lentils, olive oil, fish and potatoes.Brain autopsies were performed to evaluate amounts of beta-amyloid plaques and tau tangles, proteins that, when they accumulate, can disrupt brain cell function and slow a person’s ability to think and remember.
The results also showed that having a MIND diet score one point higher – indicating improvement in just one food group such as eating more berries or eating less red meat – corresponded to a typical plaque buildup of being four years younger. Leafy greens are excellent sources of vitamin K, folate, beta-carotene and lutein, nutrients believed to help preserve brain functioning.
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