Five major effects of onion:
1, prevent cancer
Onion is rich in selenium and quercetin. Selenium is an antioxidant that stimulates the body's immune response, thereby inhibiting the division and growth of cancer cells, while also reducing the toxicity of carcinogens. Quercetin can inhibit the activity of cancer cells and prevent the growth of cancer cells.
In France, a study conducted on women showed that women who consumed more onions and garlic had a lower risk of developing breast cancer.
2. Maintain cardiovascular health
Onion is the only vegetable known to contain prostaglandin A. Prostaglandin A can dilate blood vessels and reduce blood viscosity, and therefore it can produce blood pressure, increase coronary blood flow, and prevent thrombosis. Quercetin, which is abundant in onion, has high bioavailability. Scientists report that quercetin may help prevent the oxidation of low-density lipoprotein and provide important protection against atherosclerosis. .
3, antioxidant
The flavonoids in onions have a strong antioxidant effect due to their phenolic hydroxyl structure. In addition, onions also have the effect of treating vitamin deficiency, especially the prevention and treatment of scurvy and heavy metal poisoning. Onions can also relax smooth hunger diuretic, blood pressure, regulate the body's physiological balance and metabolism.
4, stimulate appetite, help digestion
The special odor of onion stimulates the secretion of gastric acid and increases the appetite. Experts have also shown that onion can increase the gastrointestinal tract tension, promote gastrointestinal motility, and thus play an appetizing role, has a significant effect on the loss of appetite caused by atrophic gastritis, gastric insufficiency, indigestion and so on.
5, improve eye fatigue
Glutathione, which is abundant in onion, promotes corneal collagen synthesis and maintains crystal clarity. Glutathione was found to improve eye fatigue and blurred eyes.
How to eat the most nutritious onions
The most nutritious onion is eaten raw
Experts said: Speaking of eating onions, Liu Dongli’s first reaction is to eat raw. Hearing reporters' questions about "taste", she explained that actually eating raw onions is not as scary as people think. Liu Dongli's habit is to slice onions and eat a few slices of rice every day when they eat. This will not be hot. The nutritional value of onions is very high. Raw foods do not destroy the nutrients. In this way, sticking to it every day, there will be a role for health care.
Raw onion is best selected purple skin, which contains anthocyanins, this material has anti-oxidation function. Moreover, the purple onions are more spicy, indicating that the sulphide content is richer and it can both resist oxidation and reduce blood fat. People with high blood pressure suggest that it is best not to dip sauce because the salt content in the sauce is high and it will bring about hidden dangers in blood pressure.
Onion stew can make you tired
Experts think: Indeed, eating onions is the healthiest. However, what if we can't stand the spicy onion? I have a trick: When the broth is stewed, put the cut onion rings in the pan and then turn off the heat. Eat a mouthful of meat, eat a piece of onion and drink soup. It's delicious.
Eating stews and drinking broth, although delicious, but the hidden dangers of oil can not be underestimated. A hot onion that lowers blood pressure and lowers blood pressure is much better with eating. A little hot, the destruction of the nutritional content of onions is small, but it can greatly reduce the spicy taste, afraid to eat raw friends are not afraid. And onions can also stimulate the digestive tract, promote the secretion of digestive juices, eliminate the greasy and help digestion, in one fell swoop.
Loofah onion is delicious
Experts say: Cantonese people generally like to fry onions as ingredients with other dishes. Recommend a lighter onion fried loofah it. Cut the onion into silk, cut the loofah into strips, put some ginger and garlic, stir it in a pan, and put a little salt on the pan. Although this is a vegetarian dish, the two foods are both nutritious and beautiful.
However, when it comes to frying, special attention should be paid to the method. Onions also contain many anti-oxidant substances. It is necessary to reduce some of the pungent odors and minimize the destruction of the nutrients in the onions. Therefore, I suggest that the onions be simmered.
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