17 Proven Health benefits of onions

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Onion is a universal herb, consumed in all regions of the world. There are several varieties, some of which are particularly rich in antioxidants. Onions are part of the large family of Alliaceae and, like garlic, are attributed to certain health-giving properties. 17 Proven Health Benefits of onions

If you don’t yet know a lot about the benefits of onions, this article is for you! It is the ideal food to fight pain. Its healing power also helps to cure a variety of illnesses.

Discover here the 17 benefits of onion!

17 The benefits of onion:


Dr. Richard Beliveau, a cancer specialist and author of “Anti-cancer Foods” (ed. Flammarion), explains that “based on the knowledge acquired to date, it is increasingly certain that onion compounds can slow the development of cancers by targeting at least two processes involved in tumor growth. On the one hand, they could prevent the activation of carcinogenic substances by reducing their reactivity and accelerating their elimination. This reduces the damage caused by these substances to DNA, the main target of these carcinogens. On the other hand, they are also able to reduce the spread of tumors by interfering with the growth process of cancer cells, causing them to die. “To date, studies on the anti-cancer properties of onions have shown that regular consumption of onions reduces the risk of colon, laryngeal, ovarian, brain, stomach, esophageal, and prostate cancer. Research does not focus on a particular variety, but the more colorful the onion is, the richer it is in antioxidants. Finally, we know that the molecules responsible for these anti-cancer effects are released by the mechanical breakdown of vegetables: it is, therefore, better to eat it freshly chopped on your culinary preparations.

2. It helps children grow up well

Onions contribute to the proper development of the fetus during the first weeks of pregnancy and to the growth of the children thanks to their high folic acid content.


From a phytochemical point of view, the yellow onion is a major source of vitamin C, selenium but also flavonoids, more precisely quercetin, a powerful antioxidant also found in apple or tea. This molecule prevents the growth of a very large number of cancer cells, making it an inhibitor of cancer development. The red onion provides anthocyanins responsible for its coloring, which fights against cell aging, improves the elasticity and density of the skin, strengthens the resistance of blood vessels in the epidermis, and improves visual acuity (night vision in particular).

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4. It’s good for the cardiovascular system

Regular consumption of onions is beneficial and prevents the possible formation of blood clots. It protects against the risk of vessel obstruction and thrombosis.

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5. Onion reduces high blood pressure

A University of Utah study published in 2007 also showed that quercetin reduced high blood pressure. Regular consumption would, therefore, reduce diastolic and systolic blood pressure. The heart would work less, so it would experience less stress.

6. It can relieve earaches

11 health benefits of onions
To take advantage of its anti-inflammatory and anti-viral benefits, take a piece of the heart of the onion, heat it for 30 seconds in the microwave, then place it in your ear (do not stick it in) for 10 minutes. If the discomfort persists, do not hesitate to consult a doctor.

7.better blood circulation

Onions have a high quercetin content, which promotes blood circulation. It also contains silica, a substance that helps prevent thrombosis and the aging of veins and arteries. Thanks to it, our body is able to dissolve internal clots more easily, which prevents coronary thrombosis from forming. Onions also help to reduce the level of cholesterol in the blood.

8. Onions prevent anemia

The onion has anti-anemic properties. Indeed, it brings us phosphorus, iron, and vitamin E. These components help us to reconstitute blood loss and regenerate red blood cells.

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 9. It helps to relieve colds

The benefits of onion
Onions are rich in vitamins A and C. It is therefore ideal to relieve respiratory diseases. Thanks to sulfur, it has essential oils. These oils have the ability to reduce the symptoms of bronchitis, colds, and catarrhs.

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10. It helps to control hypertension

Since it contains potassium, onions help remove excess liquid. It, therefore, reduces the risk of suffering from gout and hypertension and prevents kidney stones.

11. It has diuretic and purifying properties.

11 health benefits of onions
Thanks to its potassium and low sodium content, onions help prevent water retention by releasing toxins from the body. In addition, it is also very good for the kidneys and prostate.

12. It prevents diseases of the nervous system

Onions are rich in vitamin B and potassium. These elements are necessary for the transmission and regeneration of nerve impulses.

It also has good magnesium content, which helps to improve the functioning of the nervous and muscular system.

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13. It helps to lose weight

Onions are ideal as part of a diet, whether for weight loss or health reasons. Low in calories and full of fiber, it is ideal to support a slimming diet! The onion improves intestinal transit and eliminates toxins, which prevents water retention.

 14. Onions are excellent for pregnant women and children.

Thanks to its high folic acid content, onions are ideal for pregnant women and children. Indeed, it contributes to the growth and proper development of the fetus during the first weeks of pregnancy.

15. Onion is A powerful antioxidant

The onion has antioxidant properties: it contains vitamins A and C, sulfur, and flavonoids such as quercetin and anthocyanins.

16. It relieves asthma and inflammation.

Thanks to the sulfur, onion is a good anti-asthmatic. It is also a great anti-inflammatory.

17. Onion is an antiseptic

If applied externally, the onion can act as a natural antiseptic. It is able to reduce kidney inflammation.

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