By Mark Waghorn via SWNS
A daily handful of superfruit cranberries could beat Alzheimer's, according to new research.
The fruit, most often eaten with turkey at Christmas, boosts memory by increasing blood flow to the brain.
People who ate around a small bowl a day had better powers of recall - after just 12 weeks.
Scans showed more blood was flowing to the brain - which increases cognitive abilities.
The volunteers also had nine percent less bad, or 'LDL' (low density lipoprotein), cholesterol that can block vessels.
The number of dementia patients worldwide is set to triple in the next three decades.
There is an increasing focus on behaviors that are protective.
Lead author Dr. David Vauzour, of the University of East Anglia, Norwich, said: "Dementia is expected to affect around 152 million people by 2050.
"There is no known cure, so it is crucial we seek modifiable lifestyle interventions, such as diet, that could help lessen disease risk and burden.
"Past studies have shown higher dietary flavonoid intake is associated with slower rates of cognitive decline and dementia."
"And foods rich in anthocyanins and proanthocyanidins, which give berries their red, blue, or purple color, have been found to improve cognition.
"Cranberries are rich in these micronutrients and have been recognized for their antioxidant and anti-inflammatory properties.
"We wanted to find out more about how cranberries could help reduce age-related neurodegeneration."
Doctors recommend eating cranberries raw or blended rather than consuming them in juice, which is often laden with sugar.
The sharp taste, which puts many off, is diluted by eating them with breakfast cereals or other foods.
The study involved 60 mentally fit 50 to 80-year-olds - half of whom consumed freeze-dried powder equivalent to 100g of fresh cranberries, daily.
Dramatic improvements in remembering everyday events were identified in the fruit group.
They also had superior neural functioning and blood supply, or brain "perfusion'." This was compared to peers given a placebo.
Vauzour said: "We found the participants who consumed the cranberry powder showed significantly improved episodic memory performance in combination with improved circulation of essential nutrients such as oxygen and glucose to important parts of the brain that support cognition - specifically memory consolidation and retrieval."
“The cranberry group also exhibited a significant decrease in LDL or 'bad' cholesterol levels, known to contribute to atherosclerosis - the thickening or hardening of the arteries caused by a build-up of plaque in the inner lining of an artery.
"This supports the idea cranberries can improve vascular health and may in part contribute to the improvement in brain perfusion and cognition."
He added: "Demonstrating in humans cranberry supplementation can improve cognitive performance and identifying some of the mechanisms responsible is an important step for this research field.
"The findings of this study are very encouraging, especially considering that a relatively short 12-week cranberry intervention was able to produce significant improvements in memory and neural function.
“This establishes an important foundation for future research in the area of cranberries and neurological health."
Cranberries are hailed as a 'superfood' due to their high nutrient content. They have been linked to combating urinary tract infections, heart disease, and certain types of cancer.
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