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Senior Nutrition & Foods For Brain Power

Senior Nutrition & Foods for Brain Power

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Can eating a specific food or following a particular diet help prevent or delay dementia caused by Alzheimer’s disease?

Many studies suggest that what we eat affects the aging brain’s ability to think and remember. These findings have led to research on general eating patterns and whether they might make a difference.

The Mediterranean diet, the related MIND diet (which includes elements designed to lower blood pressure), and other healthy eating patterns have been associated with cognitive benefits in studies, though the evidence is not as strong as it is for other interventions like physical activity, blood pressure and cognitive training.

Currently, researchers are more rigorously testing these diets to see if they can prevent or delay Alzheimer’s disease or age-related cognitive decline.

Diet and Dementia Risk

How could what we eat affect our brains?

It’s possible eating a certain diet affects biological mechanisms, such as oxidative stress and inflammation, that underlie Alzheimer’s. Or perhaps diet works indirectly by affecting other Alzheimer’s risk factors, such as diabetes, obesity, and heart disease. A new avenue of research focuses on the relationship between gut microbes — tiny organisms in the digestive system — and aging-related processes that lead to Alzheimer’s.

The Mediterranean and MIND Diets and Alzheimer’s

One diet that shows some promising evidence is the Mediterranean diet, which emphasizes fruits, vegetables, whole grains, legumes, fish, and other seafood; unsaturated fats such as olive oils; and low amounts of red meat, eggs, and sweets.

A variation of this, called MIND (Mediterranean–DASH Intervention for Neurodegenerative Delay) incorporates the DASH (Dietary Approaches to Stop Hypertension) diet, which has been shown to lower high blood pressure, a risk factor for Alzheimer’s disease.

Some, but not all, observational studies — those in which individuals are observed or certain outcomes are measured, without treatment — have shown that the Mediterranean diet is associated with a lower risk for dementia. These studies compared cognitively normal people who ate a Mediterranean diet with those who ate a Western-style diet, which contains more red meat, saturated fats, and sugar.

Evidence supporting the MIND diet comes from observational studies of more than 900 dementia-free older adults, which found that closely following the MIND diet was associated with a reduced risk of Alzheimer’s disease and a slower rate of cognitive decline.

However, not all studies have shown a link between eating well and a boost in cognition.

Overall, the evidence suggests, but does not prove, that following a Mediterranean or similar diet might help reduce the risk for Alzheimer’s dementia or slow cognitive decline. To find out more, scientists supported by National Institute on Aging and other organizations are conducting clinical trials—considered the gold standard of medical proof—to shed more light on any cause and effect.

While scientists aren’t sure yet why the Mediterranean diet might help the brain, its effect on improving cardiovascular health might in turn reduce dementia risk. Two recent studies suggest that, as part of this diet, eating fish may be the strongest factor influencing higher cognitive function and slower cognitive decline. In contrast, the typical Western diet increases cardiovascular disease risk, possibly contributing to faster brain aging.

In addition, the Mediterranean diet might increase specific nutrients that may protect the brain through anti-inflammatory and antioxidant properties. It may also inhibit beta-amyloid deposits, which are found in the brains of people with Alzheimer’s or improve cellular metabolism in ways that protect against the disease.

What Do We Know About Individual Foods?

Many foods — blueberries, leafy greens, and curcumin (found in the spice turmeric), to name a few — have been studied for their potential cognitive benefit. These foods were thought to have anti-inflammatory, antioxidant or other properties that might help protect the brain. So far, there is no evidence that eating or avoiding a specific food can prevent Alzheimer’s disease or age-related cognitive decline.

But scientists continue to look for clues.

One study, based on older adults’ reports of their eating habits, found that eating a daily serving of leafy green vegetables such as spinach and kale was associated with slower age-related cognitive decline, perhaps due to the neuroprotective effects of certain nutrients.

Research has also shown that eating a diet that includes regular fish consumption is associated with higher cognitive function and slower cognitive decline with age. Another recent study, in mice, found that consuming a lot of salt increased levels of the protein tau, found in the brains of people with Alzheimer’s, and caused cognitive impairment.

Eating healthy is important and our community promotes healthy dining options. Our culinary staff work hard to bring food to life while still being beneficially healthy to our residents.

If you or your loved one is looking for a community offering Assisted Living or Memory Care in Tampa, Florida, call us at (813) 344-4023 to get more details on how a senior living community like ours might just be a perfect fit.

Source: https://www.nia.nih.gov/health/what-do-we-know-about-diet-and-prevention-alzheimers-disease

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