The health benefits of onions

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Among the health benefits of onions includes colds, bronchial asthma, bacterial infections, respiratory problems, angina pectoris and cough.

Onions are known to repel insects bloodthirsty. Specialists confirmed that onion is an excellent remedy for people with poor appetite and for those suffering from atherosclerosis. In addition, onion relieves symptoms of those suffering from chronic asthma, allergic bronchitis, coughs and colds.


1. Overview
2. Onions composition
3. Some of the health benefits of onions
4. Onions – role in the detoxification
5. Onions and heart
6. Other health benefits of onions

Onions composition

Health benefits of this vegetable is largely due to the sulfur compounds present in essential oils and quercetin found in its composition.

These are antioxidants that help neutralize free radicals present in the body. Onion has been used by people for centuries for medicinal purposes. In its composition are present minerals such as calcium, magnesium, sodium, potassium, selenium and phosphorus. Antibacterial properties of onion are accompanied by antifungal qualities.

Some of the health benefits of onions

- Onions are an excellent source of vitamin C, B6, biotin, chromium, calcium and dietary fiber. In addition, onions contain high amounts of folic acid, vitamin B1 and K. 100 grams of onions offers 44 calories to the body – mostly complex carbohydrates and 1.4 grams of fiber. As with garlic, onion composition includes the enzyme called allinase, which is released when the onion is cut or crushed.

- Onions contain flavonoids, pigments that give the color of vegetables. These compounds act as antioxidants and have a direct antitumor effect, with properties like boosting the immune system.

- Onions are rich in quercetin, a powerful antioxidant that has been shown to inhibit cancer stomach in humans. Quercetin in onions thins the blood, lowers cholesterol and helps increase good cholesterol (these effects were prove if consumed half a raw onion a day), prevents blood clots, help fight asthma, chronic bronchitis, fever , diabetes, atherosclerosis and infections.

- Onions have an anti-inflammatory effect, antiviral, antibiotic and have anticancer qualities. Quercetin has sedative effect. So far, not found a better source of quercetin than onion peel.

Onions – role in the detoxification

Onions contain a variety of organic sulfur compounds that offer multiple health benefits. Sulfur amino acids can be found both in the onion’s proteins and in chopped garlic and eggs composition.

The compounds found in onions have a beneficial effect in heavy metal detoxification. These practices help eliminate mercury, cadmium and lead from the body.

Vitamin C found in onion has a great role in detoxifying the body and is effective in removing lead, arsenic and cadmium in the body of a person. Increased consumption of onions can help remove these harmful heavy metals.

Onions and heart

Onions help prevent blood clots, eaten both raw and cooked. In general, cardiologists prescribe diet rich in onions to their patients. Here are the positive effects of onion on a person’s health:
- Help increase good cholesterol
- Helps thin blood
- Reduce the possibility of blood clotting
- Lowers total cholesterol
- Lowers triglycerides
- Lowers blood pressure
- Prevents cancer appearing.

Studies have confirmed that one of the ways of onion antioxidants protect against cancer is by decreasing the number of DNA cells damaged by free radicals.

All plants belonging to the family which includes onions (including garlic, leeks, etc.). are rich in organosulphur compounds that has been shown from studies on animals in laboratory to prevent the onset of cancer. In fact, onion extract was found to kill tumor cells.

Onion extract was found to be highly toxic for tumor cells without having any adverse effects. In addition, following laboratory studies proved that onion has an important role when treating leukemia.

Other health benefits of onions

Onions have been shown to have a significant impact by lowering blood sugar; its action is comparable to prescription drugs. Active compounds seem to act downward glucose competing with insulin, increasing the duration of action of insulin.

Since the old times, onions were used to treat asthma. Action in this direction is due to its ability to inhibit the production of compounds that cause muscle spasms and helps relax the bronchial airways muscles.

Onion has a strong antibacterial effect, helping to treat many diseases caused by pathogens, including E. coli and Salmonella.

Dried onion is an amazing source of fiber and is rich in healthy compounds of sulfur, similar to those found in garlic. Onions and garlic appear to have similar benefits on the cardiovascular system (such as lowering blood pressure and lowering cholesterol levels) at least in the short term.

Onions contain flavonoids, phytochemicals that help vitamin C in conducting its function, maintains healthy blood vessels and reduces inflammation. All these are useful to support the cardiovascular system. Quercetin and flavonoids can inhibit specifically the growth of tumors and help prevent colon cancer.

In addition, one onion compounds rivals medicines obtained on prescription which inhibits bone loss in postmenopausal women. Onion contains vitamin C and chromium. Chromium is a mineral that helps cells respond to insulin and controls blood glucose levels. Green onions are rich in vitamin A.



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