If you were to name a few superfoods that are bestowed to humans by nature, blueberries could occupy a place in the top few of them. That is because these cute little berries are highly nutritious in their content, rendering all the sweetness to the tongue and life of human beings.
Blueberries are found to be the second most popular fruits after strawberries in the United States and are ranked first in their antioxidant content. The use of blueberries was primarily for preparing delicious food products such as jams and tarts, but, as researchers came out with their remedial benefits, they gained popularity all around the world.

The Origin And Structure Of Blueberry: 
Blueberries got originated from North America, and it leads in the world in terms of production of this fruit. North American nations such as the United States and Canada have pioneered the art of growing blueberries.Following them, some species of blueberries are also found in Asia, Europe, South Africa and Mediterranean regions. But still, North America accounts for about 30 percent of the blueberries of the world. 

Blueberries grow in prostate shrubs that could have a height ranging from 10 cm to 4 meters. In commercial production, blueberries could be termed as ‘lowbush blueberries’ and ‘highbush blueberries’, wholly according to their size.The blueberry tree bears bell-shaped flowers that could appear to have a pinkish or whitish tint, scarcely occurring in green colour. The fruit is a blue-coloured berry (as the name suggests) that has a size of about 5 to 16 mm. 

These fruits have a pale green colour when they are raw, but it slowly turns purple when the fruits turn ripe. These have a sweet or a sour flavour when tasted and could find applications in many taste-rendering delicacies prepared by human beings.

Nutritional value of blueberries: 
While talking about the nutrients, blueberries are more often called superfoods since they are a storehouse of many essential nutrients, Phytochemicals and minerals for the humans. These little blue-coloured fruits are made up of proteins, carbohydrates, healthy fats, dietary fibres and calories. Apart from this, they also contain vitamins such as Vitamin A, B1, B2, B3, B6, B12, Vitamin C, Vitamin E, Vitamin K and Vitamin D. 

It also has a composition of some vital minerals such as calcium, copper, iron, magnesium, manganese, phosphorus, potassium and zinc etc. You could find a bit of Omega 3 and Omega 6 fatty acids, many amino acids and organic acids etc. which make this fruit a sheer genius in terms of rendering positive effects to the human health.

Blueberry Juices and Extracts: 
Owing to the innumerable health benefits that the blueberries are said to provide to human beings, many manufacturers have revolutionized this fruit and converted it into its juice. Blueberry Juice is prepared with all the organic methods so that the nutrients in it are not lost.

The preparation of juice is followed by its storing and preservation, done organically without the use of chemicals. Similarly, the fruit extracts could also be prepared by heating the juice to optimum temperatures. Blueberries also get used in making many tarts, jams and pies which are highly prominent for their taste.

Health Benefits Of Blueberries: 
The innumerable Phytochemicals in the blueberries have rendered it the capability to swipe off several health troubles in the humans which often require the investigation of a specialist. Some of the health benefits of blueberries are: 
Preventing Urinary Tract Infections: Certain nasty bacteria such as E-Coli etc. may cling to the walls of the urinary tract (organs such as bladders and urethra), which lead to many kinds of infections in the system. These bacteria could also make their way to kidneys causing their failure and through the bloodstream, could spread in the entire body.
Blueberries have compounds due to which they could prevent the spreading of these bacteria, and often they are found to scrub the bacteria that cling to the wall of the urinary tract. In this manner, they could prevent many kinds of Urinary Tract Infections in humans.

Ageing: Free radicals that are often encountered in the environment could cause particular ageing effects in humans. Due to this, humans could lose the eye-vision, develop spots on the skin, and their bones tend to weaken. Blueberries are said to possess several kinds of antioxidants that are responsible for scavenging these free radicals in the body and thereby, prevent ageing effects in the humans. The compounds such as anthocyanin, vitamin C and Vitamin k etc. help prevent conditions such as cataract, hair loss, dementia and osteoporosis etc.

Eye troubles: Blueberries are full are antioxidants which are said to impart vision to the eyes of humans. Due to the effects of antioxidants, the human eyes could stay away from disorders such as cataract, macular degeneration, myopia, Hypermetropia, dryness and infections etc.

Constipation and other digestive troubles: Blueberries are rich in dietary fibres which are said to relieve the human digestive tract of its disorders. The digestive fibres help in efficiently absorbing the nutrients out of the ingested food and also facilitate the passage of waste products out of the body.
These are also helpful in staying away from digestive troubles such as constipation and dysentery etc. 

Heart Diseases: The antioxidants in the blueberries further extend their effects to prevent the human heart from many dangerous diseases. It also strengthens the muscles of the heart.
A study conducted in 2012 over 93000 women participants came with the outcome that the consumption of blueberries thrice or more a week helped them to reduce the risk of heart attacks by 32 percent. (Source: http://www.ncbi.nlm.nih.gov/pubmed/23319811 )  

Immunity:  Apart from the antioxidants, blueberries are full of other vital elements such as vitamin C, Vitamin K, Vitamin E and copper etc. which are huge supporters of the human immunity. Due to this, their body can suppress the toxins which cause innumerable diseases to them. 
Thus, blueberries are simple fruits that could solve many complex problems in humans and thereby, increase the life of humans.