Tuesday 21 May 2013

Health Benefits of Blueberries

Blueberries
Not only are blueberries good-tasting, they have some fantastic health benefits which include:

The highest antioxidant capacity of all fresh fruit: Blue Berries, being very rich in anti oxidants like Anthocyanin, vitamin C, B complex, vitamin E, vitamin A, copper (a very effective immune builder and anti-bacterial), selenium, zinc, iron (promotes immunity by raising hemoglobin and oxygen concentration in blood) etc. boost up your immune system and prevent infections. Once your immunity is strong, you won’t catch colds, fever, pox and all such nasty viral and bacterial communicable diseases.

Neutralizes free radicals which can affect disease and aging in the body: Blue Berries bring you the brightest ray of hope, for they are laden with anti oxidants and rank number 1 in the world of anti oxidants. This is mainly due to presence of Anthocyanin, a pigment responsible for the blue color of the blue berries. The abundance of vitamin-C is also a big factor for this as well.

Aid in reducing Belly Fat: A new University of Michigan Cardiovascular Center study suggests that blueberries may help reduce belly fat and risk factors for cardiovascular disease and metabolic syndrome. So far, we know that the fruit works on rats, which were the test subjects. A blueberry-enriched powder was mixed into the rats' diet, which was either low-fat or high-fat rat chow. After 90 days, the rats with the blueberry-enriched diet had less abdominal fat, lower triglycerides, lower cholesterol and improved fasting glucose and insulin sensitivity. And their health was even better when combined with the low-fat diet. That group had lower body weight, lower total fat mass and reduced liver mass than the rats on the high-fat diet. An enlarged liver is linked to obesity and insulin resistance, a hallmark of diabetes. Although more research is needed to confirm these results in humans, a related study presented at the same conference showed that men with risk factors for heart disease who drank wild blueberry juice for three weeks seemed to experience slight improvements in glucose and insulin control.

Helps promote urinary tract health: The building of colonies of certain bacteria like b-coli along the lining of the inner walls of urinary tract is responsible for this infection, resulting in inflammation, burning sensation during in passage of urine and other complications. Here, Blue Berries can be surprisingly beneficial. It has a compound formed of big polymer like heavy molecules which inhibits the growth of such bacteria. It also has some anti biotic properties which adds to this effect. These heavy and big molecules almost wash-off these bacteria along the tract, thereby preventing the infection.

Been proved to preserve vision: Blueberry extract, high in compounds called anthocyanosides, has been found in clinical studies to slow down visual loss. They can prevent or delay all age related ocular problems like macular degeneration, cataract, myopia and hypermetropia, dryness and infections, particularly those pertaining to retina, due to their anti-oxidant properties. Blue Berries contain a special group of anti oxidants called Carotenoids (lutein, zeaxanthin etc.), Flavonoids (like rutin, resveritrol, quercetin etc.), in addition to others such as vitamin C, vitamin E and vitamin A, selenium, zinc and phosphorus, which are very beneficial and essential for the ocular health. Data reported in a study published in the Archives of Ophthalmology indicates that eating 3 or more servings of fruit per day may lower your risk of age-related macular degeneration (ARMD), the primary cause of vision loss in older adults, by 36%, compared to persons who consume less than 1.5 servings of fruit daily.

Brain Health: The anthocyanin, the selenium, the vitamins A, B-complex, C and E, the zinc, sodium, potassium, copper, magnesium, phosphorus, manganese etc., among others, can prevent and heal neurotic disorders by preventing degeneration and death of neurons, brain-cells and also by restoring health of the central nervous system. It is hard to believe that these berries can also cure serious problems like Alzheimer’s disease to a great extent. They even heal damaged brain cells and neuron tissues and keep your memory sharp for a long-long time. Researchers found that diets rich in blueberries significantly improved both the learning capacity and motor skills of aging animals, making them mentally equivalent to much younger ones. 

Heart Disease: The high fiber content, those brilliant anti oxidants and the ability to dissolve the ‘bad cholesterol’ make the Blue Berry an ideal dietary supplement to cure many heart diseases. It also strengthens the cardiac muscles. In this study, published in the Journal of Agriculture and Food Chemistry, researchers found that a moderate drink (about 4 ounces) of white wine contained .47 mmol of free radical absorbing antioxidants, red wine provided 2.04 mmol, and a wine made from highbush blueberries delivered 2.42 mmol of these protective plant compounds. 

Constipation & Digestion: While roughage (fiber) in Blue Berries keep away constipation (Of course, a single piece alone will not do. You need to eat a big handful of them), the vitamins, sodium, copper, fructose and acids improve digestion.

Cancer: Blue Berries can prove to be bliss for the cancer patients, for they contain certain compounds like Pterostilbene (excellent remedy for colon and liver cancer) and Ellagic Acid which, in harmony with Anthocyanin and other anti oxidants like vitamin-C and copper, can do miracles to prevent and cure cancer. Laboratory studies published in the Journal of Agricultural and Food Chemistry show that phenolic compounds in blueberries can inhibit colon cancer cell proliferation and induce apoptosis (programmed cell death). A significant 34% reduction in ovarian cancer risk was also seen in women with the highest intake of the flavone luteolin (found in citrus).

Other benefits & facts: They keep you fresh, active, fit, sharp, close to nature and in a good mood, as they are very good anti-depressants. You also don't need to spend a lot on medicines, neither are there any side effects. Remember, the deeper the color of the Blue Berries, the more they are rich in anti oxidants and other medicinal values.

According to a study presented at the 2009 Experimental Biology conference, a diet rich in blueberries lowers blood cholesterol levels while improving glucose control and insulin sensitivity, lowering the risk of subsequent heart disease and diabetes.

       Super foods reverse Type 2 diabetes.

Blueberries, Apples & Pears
Eating more blueberries, apples and pears may be linked to lower risk of diabetes, according to a new U.S. study.

These fruits are loaded with flavonoids, a natural compound present in certain fruits, vegetables and grains, which some research has tentatively tied to heath benefits such as a lower risk of heart disease or cancer.

"People who ate a higher amount of blueberries or apples, they tended to have a lower risk of type 2 diabetes," said An Pan, a research fellow at the Harvard School of Public Health who worked on the study.

The findings show an association, he added, but don't prove the fruits, themselves, prevent diabetes.

The new work, published in the American Journal of Clinical Nutrition, parallels a study published in the same journal last year associating flavonoid-rich fruits with a reduced risk of high blood pressure.

For the new U.S. National Institutes of Health-funded study, researchers tracked the dietary patterns of approximately 200,000 men and women for up to 24 years.

The participants, who were enrolled in three large ongoing studies of American health professionals, filled out regular questionnaires about how frequently they consumed certain foods and beverages of a standard portion size.

None had diabetes at the outset, but about 12,600 of the participants were diagnosed during the research period.

The lightest blueberry eaters in the study reported getting less than one serving (half a cup) of the fruit per month, while the biggest blueberry consumers had two or more servings per week.

Pan's team found that blueberry-lovers had a 23 percent lower risk of developing type 2 diabetes compared with those who ate no blueberries. People who ate five or more apples a week also had a 23 percent lower risk compared with those who didn't eat apples.

The researchers suggested that certain flavonoids especially high in those fruits might be behind their possibly beneficial effect on diabetes risk.

"We found consistent results across the three (study groups) that apples and blueberries are beneficial for type 2 diabetes," Pan told Reuters Health.

That was after taking into account other risk factors, such as body weight, cigarette smoking and a family history of diabetes.

These results agree with an earlier Finnish report related to consumption of berries and apples and diabetes risk.

While fruit sugar raises blood glucose levels rapidly, other substances in fruit such as fibers and pectin may have diabetes-related benefits, said Dr. Loren Greene, a professor of medicine at New York University who was not involved in the study.

Please Note: As defined by the Death to Diabetes Diet Program, diabetics should never eat a piece of fruit by itself. Instead, diabetics should add a handful of walnuts/almonds and a glass of filtered water when eating a piece of whole fruit such as an apple, pear, or blueberries.               
           
SOURCE: American Journal of Clinical Nutrition, online February 22, 2012.

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