Onions are known as a vegetable, belonging to the Onion family. Onions are characterized by their strong smell due to the presence of sulfur compounds allium and christine, which give onions a distinctive taste and aroma, and is the substance responsible for the health and therapeutic benefits of onions.

Onion is one of the oldest agricultural crops. It has been known for thousands of years in the Middle East, southwest Asia, China and India. It was a symbol of eternity in the Pharaonic civilization. Inscriptions containing onions were found in the pyramids and ancient Egyptian tombs.

There are many types of onions, including red onions, yellow onions, white onions, pearl onions, green onions, etc., and these types differ from each other in the concentration of antioxidants and sulfur compounds.

Onion nutritional value

It turns out that onions, in addition to their use in culinary dishes, which add flavor and aroma, are rich in many nutrients, such as the following:

• Vitamin C.

• Sulfur compounds. The sulfur compounds in onions contain essential amino acids that help the body make protein and build cell structure.

• Flavonoids, which are antioxidants.

• Phytochemicals that contribute to reducing the risk of chronic diseases such as heart disease and cancer.

• fibres.

• Vitamin A and Vitamin K.

• Calcium.

• Iron.

• magnesium

• Zinc, copper, and selenium.

Onions are free from fat and cholesterol, and the calories in onions are low, as one cup of onions, approximately 160 grams, contains only 64 calories.

General benefits of onions

1. Reducing cholesterol levels

Onions contain chromium, which reduces the levels of bad cholesterol (LDL) in the blood and increases the levels of good cholesterol (HDL), thus reducing the risk of heart disease, stroke, high blood pressure, and atherosclerosis.

Later, onions may help thin the blood and dissolve blood clots.

2. Diabetes prevention

Onions contain sulfur compounds that increase insulin levels in the blood and reduce the amount of sugar in it. The carom present in onions contributes to maintaining stable blood sugar levels. Thanks to these features, onions have become an essential component of the diet of diabetics.

3. Strengthen the immune system

Onions have been used as a natural antibiotic for several years. Onions are famous for their ability to cope with intestinal worms, various viruses, and colds caused by infections in the respiratory tract, coughing, and germs, such as: Salmonella.

Onions may also relieve asthma and reduce swelling caused by arthritis. It is also recommended to eat onions to treat excessive phlegm and hoarseness in the voice.

4- Skin protection

Eating onions helps protect against wrinkles that affect the skin with age, as it contains vitamin C that helps in the production of collagen, and it is also very useful for the freshness and hydration of the skin and reducing skin problems such as pimples, pimples and dryness.

5- Strengthening the heart

Onions contain antioxidants and compounds that help reduce triglycerides in the blood, lower cholesterol, which reduces the risk of heart disease, as well as contain anti-inflammatory and potassium, which helps reduce high blood pressure, which prevents the occurrence of heart attacks.