2. There are many types of onions, mainly red onions, white onions and yellow onions, of which red onions are good for crunching, pungent flavor is more pronounced, and are suitable for dealing with lettuce salads. The white onion is high in moisture and sweetness, and has a golden color and rich sweetness after cooking for a long time, making it more suitable for baking or stewing.
What can I say? There's a little bit of everything!
Onion nutritional value is very high,
The fat bulb contains 8.5% sugar, 9.2% dry matter, per 100 grams of vitamin A5 mg, vitamin C9.3 mg, calcium 40 mg, phosphorus 50 mg, iron 8 mg, and 18 kinds of amino acids, it is a rare health food.
The Chinese and Western clinical evidence: onion has a flat liver, laxative function, it contains volatile oil in the cholesterol-lowering substances - diallyl disulfide, is currently the only prostaglandin-like substances and can activate the hemolysis of fibrin active ingredient, these substances have a strong These substances have a strong ability to dilate blood vessels and coronary arteries of the heart, but also to promote the excretion of sodium salts, thereby reducing blood pressure and prevent the formation of blood clots.
Recent medical research also shows that onions contain trace elements of selenium. Selenium is an antioxidant, its special role is to enable the body to produce a large number of glutathione, glutathione's physiological role is to transport oxygen for cellular respiration, selenium content in the body to increase, the incidence of cancer will be greatly reduced. Therefore, the onion is another health food.
Onion also has a hypoglycemic effect, because the onion contains and hypoglycemic drugs methylsulfonylbutane pulse similar to the organic matter, and in the body can generate a strong diuretic effect of the skin bitter pigment. Diabetic patients eat 25 to 50 grams of onions per meal can play a better role in lowering blood sugar and diuretic.
Onion phytocides in addition to stimulate appetite, help digestion, but also because it is discharged through the respiratory tract, urinary tract, sweat glands, can stimulate the pipeline wall secretion, so there is expectorant, diuretic, sweating, prevention of colds and anti-bacterial corrosion effect