Oranges are the fruits of citrus trees in Rutaceae. Orange is a kind of citrus fruit, which is a hybrid of grapefruit and orange. It has high edible and medicinal value. Oranges originated in Southeast Asia. Orange is a small tree, its fruit can be peeled and eaten fresh, and its pulp can be used as seasoning or other food additives.
2. The nutritional value of oranges
(1) Oranges are rich in vitamins C and P, which can increase human resistance, increase capillary elasticity and lower blood cholesterol. People with hyperlipidemia, hypertension and arteriosclerosis often eat oranges. Eating citrus fruits every day can also reduce the incidence of stroke 19%.
(2) Oranges contain cellulose and pectin. Cellulose can promote intestinal peristalsis, help to clear the bowels, and eliminate harmful substances in the body. Pectin can help lipid and cholesterol excrete as soon as possible and reduce the absorption of exogenous cholesterol, so it has the function of lowering blood lipid.
(3) Vitamin C in oranges can also excrete fat-soluble harmful substances, which is a veritable antioxidant.
A study conducted among men and women in 13 130 shows that women with insufficient vitamin c intake may be prone to gallbladder diseases. Although the mechanism is not clear, eating oranges regularly is indeed effective in preventing gallbladder diseases.
(4) Oranges contain not only a lot of vitamin C, but also carotene, which can inhibit the formation of carcinogens, soften and protect blood vessels, promote blood circulation, and reduce cholesterol and blood lipids.
Eating an orange a day can reduce the incidence of cancer in the mouth, esophagus and stomach by half, which is the latest research result of Australian scientists just released in June and February of 5438.
(5) Research shows that drinking three glasses of orange juice every day can increase the content of high density lipoprotein (HDL) in the body, thus reducing the possibility of heart disease. Orange juice contains a specific chemical component, namely flavonoids and limonin, which can promote the increase of HDL and transport low density lipoprotein (LDL) to the outside world.
(6) Oranges are rich in fiber, low in calories and contain natural sugar, which is the best choice to replace dinner or sweets such as candy, cakes and biscuits. People who love sweets and want to lose weight can eat oranges to satisfy their desire for sweets. In addition, oranges are rich in fiber, so eating more can help defecate and reduce the accumulation of toxins in the body.
(7) Oranges are rich in various organic acids and vitamins, which can regulate human metabolism and are especially suitable for the elderly and patients with cardiovascular diseases.