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Home » Diet » In a 20-Year Study, This Dietary Factor Appeared to Cut Alzheimer’s Risk in Half – Being Patient

Mounting scientific evidence indicates that a regular bowl of berries and a cup of tea may improve our health. Now, the latest research suggest that they may also protect us against Alzheimers. The researchers of the most recent study found that those who consume plenty of flavonoid a chemical found in many fruits and vegetables, along with tea and wine were much less likely to develop the neurodegenerative disease.

In fact, participants who lacked this certain kind of metabolite in their diet were twice to four times more likely to develop Alzheimers disease and related dementias.

Our data looking at dietary patterns and Alzheimers disease in light of other data as well reinforces the fact that eating a healthy diet may have tremendous benefits in Alzheimers, said Paul Jacques, a nutritional epidemiologist at the USDA Human Nutrition Research Center on Aging at Tufts University and an author of the study, which was published in The American Journal of Clinical Nutrition.

Jacques and fellow researchers examined about 2,800 people who were aged 50 and older. Following their diets for an average of almost 20 years, the scientists analyzed the flavonoid content of their foods and divided participants into two groups: Those with low consumption of flavonoid who ate no berries, tea and just over an apple in a month, and participants with high consumption who ate about seven and a half cups of berries, eight apples or pears, and 19 cups of tea per month.

These were observational data so you have to understand the many caveats, Jacques said. But accounting for variables such as other nutrients, lifestyle factors and overall diet quality, he said the relationship between flavonoids and the reduced risk for developing Alzheimers remained strong. People with a low intake of flavonoids particularly flavonols and flavonoid polymers, which are types of flavonoid found in apples, pears and tea were two times more likely to have Alzheimers disease and other forms of dementia.

Those who consumed less of a flavonoid called anthocyanin found in blueberries, strawberries and red wine were four times more likely to develop the debilitating conditions.

The study is part of the growing body of research that highlights the importance of diet in maintaining our brain health. A low-carb diet, commonly referred to as the ketogenic diet, may also slow down the early signs of aging in the brain. The Mediterranean diet, which is high in flavonoids and consists of fish, olive oil and vegetables, may reduce peoples risk of cognitive impairment, a hallmark of Alzheimers. And while flavonoids have received much attention in the past 10 years, Jacques said their link to Alzheimers was unclear as past studies have yielded mixed results.

Meanwhile, researchers are still trying to figure out why flavonoids in particular may improve our brain health. Past findings suggest that they protect neurons against stress and suppress inflammation in the brain, which is closely linked to dementia. Scientists also found that flavonoids may increase brain blood flow and encourage the formation of new neurons, improving memory, learning and cognition.

Previous research has also found that cocoa, apples, tea and other flavonoid-rich foods may lower blood pressure and improve cardiovascular health. And, there are promising findings that flavonoids may be beneficial for memory, attention and executive function.

But whether flavonoids can cure or prevent Alzheimers by staving it off for the course of ones life remains an unanswered question. According to Jacques, its nearly impossible to conduct any long-term controlled trials to examine the link as researchers would have to prohibit participants in a controlled group from eating flavonoids for up to 20 years.

The team of scientists are now examining whether vitamin B may reduce peoples chances of developing dementia. For future research, the team hopes to assess how certain nutrients in healthy diets like the Mediterranean diet may influence early cognitive changes.

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In a 20-Year Study, This Dietary Factor Appeared to Cut Alzheimer's Risk in Half - Being Patient

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Home » Diet » In a 20-Year Study, This Dietary Factor Appeared to Cut Alzheimer’s Risk in Half – Being Patient