Onion: medicinal properties, method of use and benefits

Onion: medicinal properties, method of use and benefits


Allium cepa





Onion, Allium cepa, belongs to the Liliaceae family (although many botanists classify it within the Amarillidaceae family).

It is a plant native to a large area of ​​western Asia ranging from Turkey to India and is one of the most cultivated and used horticultural plants as it is used both raw and cooked, as a condiment and as a medicine and also waste. they are used for animal feed.

It is a herbaceous plant with a biennial cycle (annual in cultivation) with superficial and fasciculated roots. The edible part is a bulb that is nothing more than the swelling of the basal part of the leaves that grow very narrow around the real stem called "girello. or disk ", very short because the internodes are very close together.

The leaves in the onion, alternate and opposite 180 °. The flower stem of the onion is formed in the second year of life of the plant and is 40 to 100 cm high, is hollow inside and ends with a spathe that protects the 'umbrella-shaped, globular inflorescence that splits when the flowers are formed. The flowers of the onion are white, greenish-yellow or pink. The fruit is a three-lobed capsule bearing from 2 to 3 seeds per lobe. The seeds are irregularly shaped flat, black and angular.


Onion is a plant very rich in water with a low energy value of about 26 calories / 100 grams of edible part (edible).

It has a good content in mineral salts such as calcium, phosphorus, iodine, fluorine and potassium with numerous soluble carbohydrates such as glucose, sucrose and fructose. In addition to this it is rich in vitamins A, B1, B2, B5, PP, C and E, flavonoids and proteins. The characteristic aroma of onion and the "tear" is due to some volatile sulfur components that are formed when it is cut . In fact, if the onion is not cut it does not cause these effects and the smell is greatly reduced.

The therapeutic properties of onion are many and can be summarized as follows: it prevents arteriosclerosis, lowers blood pressure and cholesterol, promotes diuresis and in general has antifungal and antibacterial properties, expectorant, laxative, cicatrizing and is effective for treating bites. of insects.

It is mainly red onions that are used for therapeutic purposes.


The bulb harvested in late spring or summer is used for the onion when the leaves are curved and withered.


The onion can be used macerated, as an infusion, as a decoction against urinary tract diseases, water retention, to lower blood pressure and cholesterol.

The extract for affections of the mouth and throat.

Hot poultices of cooked onion can be made to cure abscesses.

In cosmetics, the onion can be rubbed on dry and damaged skin.


Have you ever wondered why the old watches were named onions? The reason is linked to the fact that once the watches were worn in the pocket tied to a chain. To protect them from shocks, an external closure and an internal one were devised that opened just like the veils of the onion.


The use of onion is not recommended for pregnant women, liver patients, and its raw use is not recommended for those suffering from dermatosis, difficult digestions and those who bleed easily.


You see: Onion - The language of flowers and plants.

Video: Garlic - The best medicine ever - Dr. BM Hegde latest speech. Natural medicine