1.
Sterilization, anti-cold
Onion contains phytoncide such as allicin
and so on, which has a strong bactericidal capacity and
can effectively resist flu virus and prevent colds. When this phytoncide
discharge through the respiratory tract, urinary tract and sweat glands, it can
stimulate the secretion of the cells in the pipe wall, so there
expectorant, diuretic, sweating and bacteriostatic
preservative effects.
2.
Promote gastrointestinal peristalsis and help digestion
Onions contain onion garlic spicy element,
have full-bodied aroma, which always make people shed tears during the
processing. This aroma can stimulate the gastric acid secretion and increase
appetite. The Animals experiments have proved that onions can improve
gastrointestinal tension and promote gastrointestinal peristalsis, and thus
have appetizing effect. What’s more, onions also have a significant effect on atrophic gastritis, gastric motility shortage and loss of appetite
which caused by indigestion.
3.
Prevent cancer
Onions are rich in selenium and quercetin,
which have anti-cancer effects. Selenium is an antioxidant that can stimulate the body's immune response, thereby inhibiting cancer cells
division and growth, but can also reduce the toxicity of carcinogens. The
quercetin is able to inhibit the activity of cancer cells, thus prevent cancer
cells growth. A survey showed that people who always eat onions have less 25%
rate to get cancer than those who don’t eat onions.
4.
Lower blood pressure
Onions are the only plants that containing prostaglandin
A, they are also natural blood thinners. prostaglandin A can expand blood vessels, reducing blood
viscosity, and thus produce the blood flow which can reduce peripheral
vascular and increase coronary, therefore prevent blood clots.
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