Blueberries help prevent high blood pressure.
A large-scale study completed by British and American researchers shows that eating more blueberries rich in anthocyanins can help prevent hypertension and various diseases caused by it.
Researchers from the University of East Anglia in England and their American counterparts reported in the new issue of American Journal of Clinical Nutrition that in order to study the effect of diet on blood pressure, they conducted a follow-up survey on the health status of more than100000 volunteers for as long as 14 years. At the same time, these volunteers report their health every two years and their diet every four years. At the beginning of the project, all people had no symptoms of hypertension, but after 14 years, about 35,000 people developed symptoms of hypertension.
After analyzing the diet of volunteers, the researchers found that people who regularly eat blueberries rich in anthocyanins and therefore eat a lot of anthocyanins have a lower risk of hypertension than those who don't eat blueberries very much 10%.
Aiding Cassidy, a professor at the University of East Anglia who participated in the study, said that this study confirmed that anthocyanins have the effect of lowering blood pressure. Anthocyanin belongs to flavonoids, and it is also contained in tea, fruit juice, red wine, dark chocolate and other foods. It has been known that flavonoids have the effect of lowering blood pressure, but this study shows that although people can ingest flavonoids from different ways, blueberry rich in anthocyanins has the most significant effect of lowering blood pressure, and strawberry rich in anthocyanins also has a good effect of lowering blood pressure.
Cassidy revealed that researchers will conduct more accurate quantitative research to determine the best intake of anthocyanins in daily diet.
Blueberries can enhance memory and eliminate eye fatigue.
According to the data, many foreign institutions attach great importance to blueberries: in the United States, since 2000, the U.S. Department of Education has listed blueberries as a nutritious food for primary and secondary school students to protect their eyes, requiring everyone to eat at least one cup of blueberry fresh fruit or processed products every week; In Japan, people regard blueberries as "smart fruits", and primary and secondary school students have changed from "a glass of milk a day to improve the physique of a generation" to "a bag of blueberries a day is the brain of a smart generation". During World War II, the British Air Force ate blueberry sauce every day, which greatly improved the bombing accuracy. You can see clearly in the twilight. The U.S. military supplies special forces as special food to improve vision and enhance night combat capability.
The average fruit weight of blueberry is 2g, and the maximum is 5g. The fruit is blue, with a layer of white fruit powder, delicate flesh, tiny seeds and elegant fragrance, which is a good fresh food. Blueberries are rich in special components such as VC, VE, VA, SOD, anthocyanin, dietary fiber and other trace elements such as potassium, iron, zinc and manganese. According to the analysis of Tufts University, among 40 kinds of fruits and vegetables with antioxidant function, the anthocyanin content of blueberry ranks first.
The anti-aging and beauty beauty effects of vitamin C, vitamin E and SOD are well known. It is worth mentioning that blueberries can repair injured collagen and elastic fibers, and are also rich in precious anthocyanins, which can repair injured collagen and elastic fibers. They are pure natural anti-aging nutritional supplements, which have been proved to be the most effective antioxidants discovered by human beings today, and are called "oral skin cosmetics" in Europe. It can eliminate harmful free radicals in the body, prevent premature skin wrinkles, reduce skin diseases and wrinkles, even eliminate scars, remove stains, whiten skin, and make skin smooth and elastic for a long time. The antioxidant activity of anthocyanin is 50 times higher than that of vitamin E and 200 times higher than that of vitamin C, and its bioavailability to human body is 100%, which can be detected in blood within 20 minutes after taking it. Different from other antioxidants, anthocyanins can directly protect the brain and nervous system through the blood-brain barrier.
According to the research of American, Japanese and European scientists, regular consumption of blueberry products can also significantly enhance vision and eliminate eye fatigue. Kazuhiro Nakagawa, a doctor of biomedicine in Japan, wrote: Medical clinical reports show that anthocyanins in blueberries can promote the regeneration of rhodopsin in retinal cells, prevent myopia and improve vision. Professor Walker, a doctoral supervisor at the University of Toronto and a doctor of medicine at Harvard University, confirmed that blueberries can prevent myopia and various eye diseases.
In addition to scavenging oxygen free radicals, improving eyesight, resisting oxidation, resisting aging and beauty beauty, blueberry can also delay brain nerve aging, improve memory, strengthen blood vessels, improve circulation, improve sleep, delay memory decline, prevent heart disease and cancer, and is known as "super fruit" and "universal fruit"!
1, blueberry has high pectin content, which can effectively reduce cholesterol, prevent atherosclerosis and promote cardiovascular health;
2. Blueberries contain cyanine, which has the functions of activating retina, enhancing eyesight and preventing eyeball fatigue;
3. Blueberries are rich in vitamin C, which has the functions of enhancing heart function, preventing cancer and heart disease, preventing brain aging and enhancing brain power; It can also improve common cold, sore throat and diarrhea.
nutritional ingredient
Besides conventional sugar, acid and Vc, blueberry fruit is also rich in VE, VA, VB, SOD, arbutin, protein, anthocyanin, dietary fiber and mineral elements such as K, Fe, Zn and Ca.
According to the analysis and determination of 14 varieties of blueberry fruits imported from the United States, the content of anthocyanin pigment per 100 grams of blueberry fresh fruit is as high as 163mg, protein 400-700 mg, fat 500-600 mg, carbohydrate 12.3- 15.3 mg, and vitamin A is as high as 80 mg. Trace elements are also very high. Each gram of fresh fruit contains 220-920 micrograms of calcium, 98-274 micrograms of phosphorus, 0/14-249 micrograms of magnesium, 2. 1-4.3 micrograms of zinc, 7.6-30.0 micrograms of iron and 0.8-/kloc of germanium. It is precisely because blueberry fruit is rich in nutrition that it is a nutritious and healthy fruit with high contents of amino acids, zinc, calcium, iron, copper and vitamins. It not only has good nutrition and health care function, but also has the functions of preventing brain nerve aging, strengthening heart, resisting cancer, softening blood vessels and enhancing human immunity.