Grapes: good and bad
Grapes are an extremely useful and pleasant fruit and berry culture.According to archaeological data, this sweet fruit has been living on the earth for more than seven thousand years.
According to the founder of medicine - the ancient Greek physician Hippocrates, the biochemical composition of grape berries is very similar to the composition of breast milk.According to his writings, grapes have a huge medicinal potential and high nutritional value, therefore is an excellent assistant in the fight against physical ailments.
Despite the fact that a huge number of official sources have been created with a detailed description of the useful properties of grapes, medicine continues to study its effect on the human body.
To date, breeders have produced more than 20 thousand varieties of grapes, each of which has its own unique taste and special effect on the human body.But it is precisely known that absolutely all varieties of this culture have a positive effect on internal organs and their functioning.
Nutritional value of grapes, its chemical composition
Having in its composition a large number of various substances, grapes are invaluable for the human body.
Ripe grape berries are the source of a whole complex of such useful micronutrients and irreplaceable substances as:
- glucose, xylose, raffinose;
- organic acids - malic, citric, amber, tartaric and glycolic;
- minerals - potassium, iron, magnesium, calcium, aluminum, phosphorus and manganese;
- vitamins, the main of which are: ascorbic acid, thiamine, carotene and rutin;
- protein substances are enzymes indispensable in such important processes as normal digestion of food and regeneration of the epidermis.
Also grapes, more precisely, its juice, is a source of nitrogenous, coloring and tanning substances that have antiseptic and anti-inflammatory effects.
Caloric value of grapes directly depends on its grade.So, per 100 grams of fruit on average:
- 40-43 kcal - white grape varieties;
- more than 60 kcal - dark varieties.
Important: should be noted that grapes can bring real benefits to the body if you consume no more than 15-20 berries a day.
Useful properties of grapes
Studies have shown that artificially derived varieties( such as Kishmish, Anyuta, Arcadia) have fewer therapeutic components.It has also been experimentally established that dark varieties( red, blue, black) saturate the body with more bioflavonoids than bright( white, yellow, green).This substance helps strengthen blood vessels and heart muscle, normalize blood pressure, and also has an anti-carcinogenic effect.Thus, dark varieties of grapes will be of great benefit in treatment than whites.
So, black berries are shown to be used by people engaged in intellectual work, and those who study, since the greater part of the natural sugar contained in them is glucose.In addition, black grape varieties are rich in essential amino acids( lysine, arginine, valine and leucine), which have a positive effect on the nervous system and cell growth, and are involved in the formation of proteins.A huge complex of vitamins and beneficial microelements have a beneficial effect on immunity and on all processes of vital activity in our body.
Red grape berries are famous for the presence of a special antioxidant - resveratrol contained in their peel, which reduces the risk of formation of tumors, and malignant ones including, possesses powerful anti-inflammatory properties.In addition, red grapes have a powerful bactericidal effect, helps to cope with a cold in the early stages, cure angina and fight viruses.Dark red varieties normalize digestion, including when overeating, relieves pain in attacks of chronic gastritis.
Despite the fact that light varieties of grapes lose somewhat to their fellow medicinal properties, they can still be of invaluable help to the body.Light berries are widely used in dietetics, since they are less caloric and can reduce the level of "harmful" cholesterol.
Contraindications to the use of grapes
Unfortunately, not all people can include aromatic berries in their diet.So, it can not be used in diabetes or obesity, because the composition contains sucrose.Also, grapes are contraindicated in the acute stage of tuberculosis.
With caution, this product should be used by persons who have:
- Peculiarity to swelling.
- Elevated blood pressure.
- Diseases of the gastrointestinal tract at the stage of exacerbation.
After drinking grape juice, you should rinse your mouth or brush your teeth, as it contains many acids that can eat away tooth enamel.
Grapes - a deposit of nutrients for children and pregnant women
Medicine has proved that grapes in the absence of allergies can bring a tremendous benefit to a growing child's organism, especially for weakened children who often suffer from cold and infectious diseases.Thanks to the regular use of berries, the immune system is strengthened, harmful substances are taken out, the digestive system is normalized.
The use of grapes during pregnancy allows you to saturate the body with substances that are useful in this period, such as potassium, calcium, thiamine and vitamins A and E. Also reduces the risk of CNS and skeletal abnormalities of the kid.Grape juice charges with energy and vigor, relieves fatigue.In addition, regular use of grapes will adjust the work of the nervous system and digestion, which is very important for a woman in the period of bearing a child.
However, do not abuse this miracle berry, since a large amount of grapes eaten can lead to unpleasant swelling and fermentation in the stomach, accelerate weight gain and cause swelling.
Grape storage conditions
When choosing grapes, you should carefully inspect the berries: they must be dense, shiny, dry and free of damage.The bunch should not be showered.
Grapes are stored much longer in a cool room or refrigerator.On the advice of breeders, the bunches of grapes should be kept in cork or sawdust.But there is an easier way.You can put the vine into the water with charcoal or a pinch of salt.
