Health Sabz

Onions: Health Benefits and Kinds

Onion – Kinds and Health Benefits

Onions are grown and eaten all around the world. The majority of the time, they are served cooked. They are also used in pickles and chutneys and can be eaten fresh. The onion has a strong flavor that is crisp and aromatic. Even though it is a temperate crop, it may be cultivated in a variety of climates (temperate, tropical, and subtropical).

Types of onion

The onion is so commonly utilized that it may be found in practically any culinary dish from around the world. There are many different sorts of onions, but we’ll focus on the most common ones.

  • Yellow onions have an ivory white flesh that is encased in a thick brown skin. They have a pungent, sulphurousodour.
  • Sweet onions have a thinner, less opaque skin that surrounds a larger, slightly fatter vegetable body.
  • White onions are softer and sweeter than their yellow counterparts, with a papery white skin.
  • Red onions can be eaten raw because they are mild and sweet. The skin and flesh on the outside are a deep magenta color.
  • Shallots are little, brown-skinned onions with purple flesh.
  • Green onions are immature onions that haven’t yet developed into a bulb
  • Leeks are used in sauces and soups and are formed like overgrown scallions (a long-necked onion with a small bulb).

What Are Onion’s Health Advantages?

Two phytochemical substances present in onions, alliums and allyl disulphide, have been discovered to reduce the incidence of numerous types of cancer, help regulate blood sugar, reduce inflammation, and heal infections. Here’s a quick rundown of the remarkable onion health benefits:

  • Defeat Cancer

Red onions are the most effective in eliminating breast and colon cancer cells, according to a study conducted by the University of Guelph. Quercetin and anthocyanin, two chemicals that contribute to this feature, are abundant in these onions. Onions trigger pathways in cancer cells that cause them to self-destruct. 

They make it difficult for cancer cells to interact, which prevents them from growing.

It was also discovered that persons who ate the most onions had the lowest cancer rates. You can garnish your burgers with red onions as a precautionary step.

  • Enhance your cardiovascular health

Red onions include flavonoids that may help to keep your heart healthy.   Organ sulfurs, which are abundant in onions, can aid in the prevention of heart disease.  Intake of the organosulfur compounds present in onions, according to one Argentine study, can reduce the risk of cardiovascular disease.

Onions contain thiosulfinates, which are natural blood thinners that help to prevent heart attacks and strokes. Onions contain the antioxidant quercetin, which may help to prevent heart disease. It has anti-inflammatory and antioxidant characteristics that help to keep your heart healthy 

Onions are also a part of the French paradox; they are a staple of French cuisine and are supposed to be responsible for the French people’s low rates of heart disease, despite their high-calorie diet.

Onions can also help lower cholesterol levels, which is good for the heart. The flavonoids in onions, according to a Cambridge University Press paper, assist obese persons lower their LDL (bad cholesterol) levels 

Onions also prevent blood platelets from adhering to one another, which can cause clotting and, ultimately, heart attacks. They can also help to prevent high blood pressure, which can put your heart at risk. 

Onions were also found to be effective in preventing atherosclerosis in rabbits in another investigation. This is accomplished by increasing fibrinolytic activity (a process that leads in the clearance of tiny blood clot

  • Defend Against Inflammation and Allergies

We’ve already seen how onions’ quercetin (and other flavonoids) can assist to reduce inflammation. Onions can also help with allergies by blocking histamine from being released by the cells.

Cooking with onions can help your sinuses open up and drain. Quercetin’s antihistamine effects can also help to relieve nasal congestion. Even eating a raw onion at night can help ease congestion since the sulphur components in the onion help to break down mucous.

Onions have antimicrobial qualities as well. According to one study, onion extracts inhibited the bacteria Streptococcus mutans and Streptococcus sobrinus, which cause tooth cavities and allergies.

Onions also have antibacterial properties that help wounds heal faster 

  • Keeps blood sugar level in check 

Onion extract has been shown in a study to help reduce blood sugar levels. The experiment was carried out on diabetic rats, and the findings were promising. S-methylcysteine, a sulphur molecule found in onions, and quercetin has been shown to lower blood sugar levels. Onions, on the other hand, were found to have a favorable effect only when taken with metformin, an anti-diabetic medicine.

Polyphenols (particularly those found in onions) were discovered to play a role in glycemic management in yet another study.

  • Enhance metabolism

Inulin, a fiber found in onions, is responsible for the vegetable’s digestive advantages. The good bacteria in the intestines use inulin as a food source. Consumption of this fiber aids in the maintenance of healthy bacteria levels in the body. Onions, on the other hand, contain thiosulfinates, which can kill these helpful bacteria (as they have antibacterial properties). As a result, if you are allergic to onions’ antimicrobial characteristics, talk to your doctor.

Oligofructose (a subgroup of inulin), another soluble fiber present in onions, has been shown to prevent and treat several types of diarrhea. Onions also contain phytochemicals that can reduce the incidence of gastric ulcer

Onions’ natural prebiotics can also aid with constipation. They’re also thought to aid with stomach aches and worms, however further research is needed.

In some people, onions can trigger migraines and flatulence. If this happens, see your doctor. 

  • Improve bone health

Onions may help to prevent age-related osteoporosis, according to preliminary studies. A chemical found in white onions called GPCS, according to Swiss experts, can help prevent bone loss. Despite the fact that the research was done on rats, it has implications for humans.

Another study found that women who ate onions on a regular basis had 5% higher bone mass than those who didn’t. Women over the age of 50 were also found to benefit from onion consumption in terms of bone density.

According to the Arthritis Foundation, leukotrienes, prostaglandins, and histamines (all of which promote inflammation) can be inhibited by quercetin in onions in osteoarthritis and rheumatoid arthritis. Consumption of onions is also helpful in treating joint pains 

  • Boost Your Immune System

Onions are high in selenium, which boosts immunological function. Excessive immunological reaction, which can be harmful, is also prevented by the mineral. Immune cells that are lacking in selenium develop and proliferate inefficiently, which is where onions come in. These cells also have trouble generating essential proteins and transferring calcium.

In Russia, onions are also considered natural medicine and are used to treat colds and flu 

Is there any advantage to this? According to certain accounts, it kills infections and moisturizes the body. This will also help to improve your immune system. It’s possible that this is due to the fact that all of the body’s organs have nerve terminals in the foot. When onions are placed beneath the feet, their healthy properties are transferred to your inside. However, no research has been done on this, and we have no idea how accurate the information is.

Onion tea can also be used to treat colds. This tea boosts your immunity and aids in the prevention of illnesses. Cutting an onion, boiling it in water, and drinking the juice are all it takes to make the tea. This is an effective treatment for colds and other illnesses.

  • Improves respiratory system

According to an American study, certain fruits and vegetables, including onions, can help individuals with respiratory difficulties including asthma and allergic rhinitis

Onions’ anti-inflammatory qualities can also aid to relieve respiratory problems. If you have a respiratory illness, you can simply add onions to your diet (together with your prescription) to get faster treatment. Toss onions into salads and other dishes.


Frequently asked questions

Do onions cleanse the body?

Onions include sulfur-containing amino acids, which help your liver detox.

What happens if you eat onions everyday?

Onions are high in antioxidants and substances that combat inflammation, cut triglycerides, and lower cholesterol, all of which may lessen the risk of heart disease. Their anti-inflammatory effects may also aid in the reduction of excessive blood pressure and the prevention of blood clots.



Onions have great benefits as have mentioned above . their addition in diet can bring great value and be very helpful 

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