Diet

You can help your brain, especially as it ages, by eating and drinking right

Higher levels of copper in amyloid plaques associated with degree of neurodegeneration

Following on from the evidence that Alzheimer’s brains show higher levels of metals such as iron, copper, and zinc, a mouse study has found that amyloid plaques in Alzheimer’s-like brains with significant neurodegeneration have about 25% more copper than those with little neurodegeneration. This is consistent with a human study showing very high levels of copper in Alzheimer’s plaques.

Iron, though doubled in Alzheimer’s brains compared to controls, was not significantly different as a function of neurodegeneration, and zinc showed very little difference.

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Low dietary fiber intake linked to increased cardiovascular risk

Data from the very large U.S. National Health and Nutrition Examination Survey (NHANES), involving 23,168 people, has found a significant association between low dietary fiber intake and risk of metabolic syndrome, cardiovascular inflammation, and obesity.

Dietary fiber intake was also consistently below recommended intake levels: 38g per day for men aged 19-50 years, 30g per day for men 50 and over, 25g for women aged 19-50 years, and 21g per day for women over 50. Mean dietary fiber intake was only 16.2g per day across all groups.

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Moderate alcohol consumption boosts immune system

A study involving 12 rhesus macaques, of whom some were given access to alcohol, has found that those who drank moderately showed enhanced responses to a smallpox vaccine (compared with the control group of monkeys who drank sugar water), indicating a bolstered immune system, while heavy drinkers showed greatly diminished vaccine responses.

http://www.eurekalert.org/pub_releases/2013-12/ohs-sma121713.php

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Cholesterol levels linked to amyloid plaques in brain

A study involving 74 older adults (70+), of whom 3 had mild dementia, 33 were cognitively normal and 38 had mild cognitive impairment, has found that high levels of "good" cholesterol and low levels of "bad" cholesterol correlated with lower levels of the amyloid-beta plaques in the brain (a hallmark of Alzheimer's disease).

http://www.eurekalert.org/pub_releases/2013-12/uoc--hga122613.php

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Whole diet approach better for reducing cardiovascular risk

A review of research from 1957 to the present has concluded that a whole diet approach, and specifically Mediterranean-style diets, has more evidence for reducing cardiovascular risk than strategies that focus exclusively on reduced dietary fat.

http://www.eurekalert.org/pub_releases/2014-02/ehs-ssw020514.php

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Poor breakfast in youth linked to metabolic syndrome in adulthood

A Swedish study has found that those who ate poor breakfasts as year 9 students had a higher incidence of metabolic syndrome 27 years later, compared with those who ate more substantial breakfasts.

http://www.eurekalert.org/pub_releases/2014-01/uu-pbi012914.php

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Abdominal fat accumulation prevented by unsaturated fat

A study involving 39 young adult men and women of normal weight, who ate 750 extra calories in the form of muffins every day for seven weeks, found that those whose muffins were made with palm oil built significantly more fat and less muscle than those whose muffins were made with sunflower oil. Moreover, the palm oil group developed the fat in more dangerous places  — in the liver and abdomen. The groups gained the same amount of weight.

http://www.eurekalert.org/pub_releases/2014-02/uu-afa022414.php

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