Blueberry (Vaccinium myrtillus) Health Benefits

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Health Benefits

Brain Function

Blueberry intake has been shown to increase brain activity, memory, and learning and to decrease age-related cognitive decline.  Cognitive performance in elderly adults improved after 12 wk of daily intake of blueberry. Cognitive benefits were detected in school-aged children in an acute study design where performance on a list-learning task was improved 2 h after consuming a single dose of blueberry powder but not placebo. (5)

Antioxidant

The commonly consumed berries include blackberry, black raspberry, blueberry, cranberry, red raspberry, and strawberries. Less commonly consumed berries include acai, black currant, chokeberry, and mulberries. The antioxidant (Anthocyanin) content is usually proportional to the color intensity and can range from 2 to 4 g/kg, increasing as the fruit ripens. (4)

​Bilberry (Vaccinium myrtillus) is one of the richest natural sources of anthocyanins. These polyphenolic components give bilberry its blue/black color and high antioxidant content, and they are believed to be the key bioactives responsible for the many reported health benefits of bilberry and other berry fruits.

Cardiovascular

The main constituent of the berries of this plant is anthocyanins, further connected to their many reported beneficial health effects, such as lowering blood glucose, anti-inflammatory and lipid-lowering effects, as well as promotion of antioxidant defense and reduction of oxidative stress. Hence, bilberry fruits represent attractive food product potentially valuable in the prevention and/or treatment of different conditions associated with inflammation, dyslipidemia, hyperglycemia or increased oxidative stress, cardiovascular disease. (6)

Cholesterol lowering

Although bilberry is promoted most commonly for improving vision, it has been reported to lower blood glucose, to have anti-inflammatory and lipid-lowering effects, and to promote antioxidant defense and lower oxidative stress.

Therefore, bilberry is of potential value in the treatment or prevention of conditions associated with inflammation, dyslipidemia (elevation of plasma cholesterol, triglycerides, or both), hyperglycemia (high blood sugar) or increased oxidative stress, cardiovascular disease (CVD), cancer, diabetes, and dementia and other age-related diseases. (2)

In one human study, mixed anthocyanins from bilberry and blackcurrant (Ribes nigram) were given as an extract (320 mg/day) for 12 weeks to 60 middle-aged dyslipidemic Chinese subjects. Results showed significant improvements in low-density lipoprotein (LDL)-cholesterol (average decrease of approximately 14%) and HDL-cholesterol (average increase of approximately 14%). (3)

Conclusion

There is a known link between chronic inflammation and many of the symptoms of metabolic disease, but also the antioxidant effects of bilberry appear to directly impact directly on these symptoms.

I have made it my mission to have a berry smoothie at least twice a week. I usually include blueberries, blackberries, raspberry and boysenberry along with some dark grape juice or noni juice.

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