Onions, alias onion, onion, common purple, yellow, white three, is a common vegetable. Onion tender meat, juice spicy flavor, high nutritional value, with hypolipidemic, promote digestion, refreshing health, bactericidal anti-cold, cancer prevention, diuretic and other effects, it is known as the "Queen of vegetables." Onions can be used as a side dish or as a main dish. They can be fried or eaten directly.
Is the alkaline of the onion still acidic?
The acidity and alkalinity of foods means that the inorganic salts in foods are acidic or alkaline. General metal elements such as sodium, calcium, magnesium, etc., in the human body its oxides are alkaline, more foods containing this element is alkaline foods, such as soybeans, tofu, spinach, lettuce, radish, potatoes, scallions, onions, Kelp, watermelon, banana, pear, apple, milk, etc.
Some foods contain more non-metallic elements, such as phosphorus, sulfur, chlorine, etc., in the human body oxidation, the formation of acid radicals with anion, are acidic foods. Such as pork, beef, chicken, duck, eggs, salmon, oysters, shrimp, and flour, rice, peanuts, barley, beer and so on.
Onion efficacy
Sterilization, anti-cold
Onion contains phytoncide such as allicin, has a strong bactericidal ability, can effectively resist influenza virus, prevent colds. When this phytoncide is excreted through the respiratory tract, urinary tract, and sweat glands, it can stimulate the secretion of cell walls at these locations, so it has the effects of phlegm, diuresis, sweating, and antibacterial and antiseptic.
Promote gastrointestinal motility and help digestion
The onion contains onion and garlic, with a strong aroma. It often makes people cry because of the pungent smell. It is this special smell that stimulates the secretion of gastric acid and increases appetite. Animal experiments have also proved 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.
The anti-cancer efficacy of onions comes from its rich 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. A survey showed that people who eat onions are 25% less likely to suffer from stomach cancer than those who do not eat, and 30% less on stomach cancer.
Eating onions
What does the onion pay attention to? We can buy fresh onions. The skin on the outermost layer of the onion is thinner, and the meat is thicker, more watery, and less spicy. While colder onions are mostly stored, their spicy taste is more irritating, the skin is thicker, and the water is less.
Store in dark places. When you buy an onion, you need to buy it that is very heavy in your hands. The skin is dry, firm, with no scratches, and no smell (because the onion releases an odor when it is scratched or scratched). The onions that are bought must be kept in a cool, dry, dark and well-ventilated place. Do not put onions in plastic bags—this way the already resistant onions will soon rot.
Purple onion spicy, white onion sweet. Common onions are divided into purple and white skin. White skin onions are soft, with high moisture and sweetness. After cooking for a long time, they have golden color and rich sweetness. They are suitable for fresh food, roasting or stewing. Purple skin onions are slightly reddish and spicy. Suitable for stir-fried or lettuce salad. Purple skin onion nutrition is better.
Fried coke a little, more flavor. The onion can give the dish a slightly sweet taste and a nice caramel color. To achieve this effect, slow heating is an important recipe. The specific method is: pour a little oil in the pot, put the cut onion, and heat it on a low heat so that the onion can slowly and fully release the sugar. Occasionally stir fry to avoid sticking pans and keeping lids to maintain temperature and humidity.
Raw onion brings a cool feeling. Raw onion tastes a little flush, but it is precisely these flavored substances that have excellent health care functions such as anti-cancer. If you want to get more healthy from onions, raw or salad is the best way. When eating heavy oily foods such as beef and mutton, with raw onions, can play a role in solving tired, with a fresh minty feeling.
The effect of eating onions
1, calcium health bone. Onion is rich in calcium, and can be comparable to small vegetables such as rape, cabbage and other calcium-rich vegetables, but also contains magnesium and potassium, the ratio of calcium and phosphorus are also appropriate, good calcium absorption.
2, improve the intestinal environment. Onion and burdock, asparagus and other vegetables, containing oligosaccharides, not digested by the stomach and small intestine, but in the large intestine decomposition of foods such as Bifidobacterium and other beneficial bacteria.
3, promote weight loss and constipation. Onion is rich in dietary fiber, increases satiety and promotes bowel movements. In addition, the bifidogenic factors produced by onions also contribute to intestinal patency.
4, solution oily. Do some high-fat amaranth, such as steak, braised pork, grilled fish, etc. with onions can not only taste, but also to greasy oil and reduce the body's absorption of fat.
5, sterilization. The onion contains volatile sulfurized propylene, which has bactericidal and bacteriostatic action and disperses pests. Therefore, onions are zero-vegetable residual vegetables.
6, anti-cancer. Onion is rich in quercetin and selenium. The former inhibits the activity of cancer cells and prevents the growth of cancer cells. The latter is a powerful antioxidant that reduces oxidative damage in the body.
7, to prevent colds. Onion slightly spicy, with a divergent cold effect, can prevent colds, but also can ease the cold caused by nasal congestion, runny nose and other symptoms.
8, reduce the body's inflammatory response. The prostaglandin a contained in onion is a strong vasodilator, which helps to reduce the body's inflammatory response, regulate blood pressure, and reduce blood viscosity.
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