There is a well-known saying that “a blueberry closes the doctor’s door”, which tells us a lot about the value of this berry. Blueberries have been used to treat many different illnesses for centuries. They help you fall asleep, and they also have anti-inflammatory properties and strengthen the immune system.
Fresh blueberries help against constipation and dried blueberries alleviate diarrhoea. They have this effect due to their high tannin content. Tannins also bind heavy metals, making it harder for the body to absorb and store them. It is for this reason that consuming blueberries with medicines is not recommended, as the tannins in the berries reduce the absorption of medicines into the body.
Pigments are a highly valuable ingredient of blueberries. Particular attention is given to their blue pigment, which together with vitamin C and iron promotes haematopoiesis and keeps blood vessels elastic, especially in the brain and eyes. This is why blueberries are so good for people who suffer from night blindness or are sensitive to light. Many studies confirm that blueberries protect the vision pigments, optic nerves and the cells in the retina, thereby giving a boost to eyes that tend to tire easily. Blueberries also slow down the aging process, alleviate diabetes and promote the absorption of glucose in the body.
Various studies have revealed that the substances contained in blueberries help prevent thrombi, strengthen and expand blood vessels and reduce blood pressure. The substances concealed in blueberries also offer protection against various diseases of the nervous system such as Parkinson’s and Alzheimer’s. The substances in blueberries also slow the breakdown of the ‘feel-good hormone’ oxytocin.
It has been known for a long time that berries help fight bacteria. They don’t allow bacteria to attach themselves to human cells and promote their excretion. Blueberry juice is good against coliform bacteria. This is why eating blueberries every day is recommended. Half a glass of blueberries provides as many antioxidants as 4-5 glasses of any other fruit. Blueberries also have a calming effect.