Onions: properties, nutritional values, calories

La onion (Allium cepa) is a vegetable rich in trace elements and vitamins. Useful for its antibiotic, expectorant and diuretic properties, onion is an ally of the kidneys and the cardiovascular system. Let's find out better.

> Properties of the onion

> Calories and nutritional values ​​of onion

> Onion, ally of

> A recipe with onion

> They say about them

> Curiosities about onion

Onions: properties, nutritional values, calories



Properties of onions

Onions contain: enzymes that stimulate digestion and metabolism; trace elements (sulfur, iron, potassium, magnesium, fluorine, calcium, manganese and phosphorus); Vitamins (A, complex B, C, E); flavonoids from the diuretic action; glucochinina, a plant hormone with an antidiabetic action.

It is a food that acts on the body in a truly positive way, with various effects: antibiotic, expectorant, diuretic and purifying, invigorating the digestive system, hypoglycemic.

The onions then normalize the intestinal flora and slow down the putrefactive processes that release toxic substances linked to colon and rectal cancer; they also have aphrodisiac properties attributed to the general revitalization they produce.

Onion syrup with a little honey is an ideal remedy for some respiratory ailments; gargling with onion broth instead decongest the pharynx and are very useful in case of tonsillitis. In external use, the onion stimulates hair growth, softens and makes the skin more beautiful, purifies impure skin.


Calories and nutritional values ​​of onion

100 g of raw onions contain 26 kcal / 110 kj.

In addition, 100 g of product contain:

  • Water 92,10g
  • Carbohydrates 5,70g
  • Soluble sugars 5,70g
  • Protein 1g
  • Fats 0,10g
  • Total fiber 1g
  • Sodium 10mg
  • Potassium 140mg
  • Iron 0,40mg
  • Calcium 25mg
  • Phosphorus 35mg
  • Vitamin B1 0,02mg
  • Vitamin B2 0,03mg
  • Vitamin B3 0,50mg
  • Vitamin A 3µg
  • Vitamin C 5mg


Onions, allies of

Cardiovascular system, kidneys, lungs, liver, colon, rectum, skin.


Also discover the properties and contraindications of onion essential oil


A recipe with onion

Let's take a leap into the heart of Liguria to discover the stuffed onions alla genovese.

You need 6 onions, a slice of veal, 3 eggs, about 50 grams of parmesan cheese, a clove of garlic, marjoram, fresh bread crumbs, 50 grams of raw ham, olive oil, milk, a walnut of butter, a pinch of salt.

Clean the onions, cook them for 10 minutes in salted water, cut them in half and empty them. Leave them to cool on a clean cloth. The pulp of the onions should be squeezed and placed in a bowl. We then move on to the filling. Soak the breadcrumbs in milk; aside, brown the meat with the butter and then chop it together with the ham. At this point, add all the ingredients in the bowl where you previously squeezed the onion pulp.

Salt just enough. The last step involves filling the onions with the filling and placing them in a pan greased with oil in the oven. Before baking, sprinkle them with breadcrumbs. Keep the oven temperature around 200 °.

The fillings will be ready when the breadcrumbs form a golden crust. The dish should be served when it is at room temperature.


They say about them

Many avoid consuming onions because of bad breath, thus depriving themselves of the important benefits that could derive from this food.

Instead, it would be enough to follow a few small tricks: chew a few parsley leaf or, alternatively, spray a spray of parsley seed oil.


Curiosities about the onion

  • Cutting onions is often a drama: as the knife sinks, they come down rivers of tears. Because? In the onion there are i organic sulphides, molecules that contain one or more sulfur atoms. When onion is cut, these sulphides combine with another substance present in different layers, the "allinase enzyme", which degrades volatile and odorless amino acids. In turn, these amino acids, reacting with the water that covers the cornea, are transformed into acids, especially sulfuric and sulphurous. Since these are corrosive substances, the eye tries to get rid of them by activating the lacrimal glands. There is a way to avoid this: wet the blade of the knife, the water will dissolve the harmful vapors. 
  • In 1864, during the American Civil War, the general Ulysses S. Grant, in the face of a bout of dysentery that decimated his men, he sent a telegram to the Ministry of War: "I will not move my army without onions!". After a day, three wagons of onions were sent to help the soldiers defend themselves against hypertension, heart disease, asthma.


Onions among the foods that counteract the accumulation of toxic minerals: discover the others


Other articles on onion:
> Onions among natural antibiotic foods

> Onion among the 10 foods to fight seasonal allergies

> Tasty onions with coarse sea salt

> Onion decoction, benefits and use

> Onion, tasty recipes for the winter

> The varieties of onions

> Red onions in vegetarian recipes

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