Grapefruit is one of the most popular tropical fruit. The homeland of a plant consider Central America and India. Juice from grapefruit differs in sweet-sour taste with small slightly bitter taste.
On structure juice of grapefruit is close to lemon juice. Vitamin C content in it reaches 45%, there are also vitamins A, RR, E, groups B, organic acids, food fibers, iron, sodium, potassium, calcium, magnesium. Alkaloid quinine which was the only malaria medicine earlier is a part of the greyfrut. This substance possesses the antiarrhytmic, calming, febrifugal, anti-inflammatory action. It is a lot of in juice of grapefruit of antioxidants, flavonoids, pectin, essential oils.
The slightly bitter taste to drink is given by a flavonoid нарингин. This substance suppresses growth and reproduction of a virus of hepatitis C, reduces cholesterol level.
Thanks to the high content of vitamin C, grapefruit juice has the strengthening effect on the immune system, strengthens walls of vessels, normalizes fibrillation processes. Drink is useful to the people having diabetes. It strengthens effect of insulin, reducing thereby sugar level in blood. Unlike orange, grapefruit juice contains much less sugar, and the content of biologically active agents in it is higher. Drink increases acidity of contents of a stomach, improves work of digestive organs, promotes clarification of an organism. In comparison with juice of other fruit grapefruit causes allergic reactions much less often.
Drink has the toning effect on nervous system, normalizes a dream, saves from feeling of fatigue, improves attention and memory. It is carried to natural antidepressants. Juice of grapefruit possesses bile-expelling action therefore it can be drunk at diseases of a liver and gall bladder. Also it is useful at diseases of kidneys and a bladder, an urolithic disease. Grapefruit is carried to fat-burning products therefore juice from it is recommended to be drunk for the purpose of weight loss. It interferes with fat adjournment, accelerates exchange processes, dulls feeling of hunger.
Caloric content of grapefruit juice is 38 kcal on 100 ml.
Fresh juice from grapefruit can be made with use of the blender or juice extractor for a citrus. In the absence of household appliances squeeze out juice manually, previously having cut fruit in half. Drink should be taken within 15 minutes after preparation as it quickly loses useful properties. Drink grapefruit juice in 30 minutes prior to food or in 1 hour after meal. It is enough to drink 0.5 glasses 2-3 times a day. Grapefruit juice at sharp diseases of an urinogenital system, diseases of stomach and intestines isn't recommended, especially at gastritis with excessive acidity. In rare instances drink can cause allergic reaction therefore with care it needs to be given to small children. It is impossible to use grapefruit juice during intake of medicines: it contains chemicals which block the enzymes necessary for digestion of drugs. As a result active agents don't render therapeutic effect, and collect in an organism, causing overdose. Grapefruit juice can neutralize effect of synthetic antidepressants, antibiotics, antiarrhytmic and antineoplastic medicines, the drugs reducing cholesterol level.