20 Health Benefits of Onion, Prevent Heart Disease

Zonahobi – The benefits of onions offer health benefits. Onions belong to the genus Allium, just like onions, garlic and leeks. Onions contain a variety of vitamins, minerals and powerful plant compounds.

The benefits of onions have been proven to improve health. The benefits of onions have been used since ancient times to treat headaches, heart disease and aphthae. Onions have a strong and pungent flavor. It is often used to enhance the taste of food.

The benefits of onions have a positive effect on various aspects of health. The benefits of onions can be obtained by participating in cooking, consuming directly or in the form of juice. Here are 20 benefits of onions summarized by zonahobi.com from various sources

benefits of onions

Good for heart health

Onions contain antioxidants and inflammation-fighting compounds. It can lower triglycerides and lower cholesterol levels. This effect may reduce the risk of heart disease. Its powerful anti-inflammatory properties may also help lower high blood pressure and protect against blood clots.

Rich in antioxidants

Onions are an excellent source of antioxidants. Onion benefits include more than 25 different types of flavonoid antioxidants. Onions contain the antioxidant flavonoid ouercetin. This can help reduce risk factors for heart disease. Onions also contain the antioxidant anthocyanins, which have been found to protect against certain types of cancer and diabetes.

prevent cancer

Onions of the Allium genus have been associated with helping reduce the risk of certain cancers, including stomach and colorectal. These benefits of onions are attributed to the sulfur compounds and antioxidant flavonoids found in allium. Onions also contain sulfur compounds that have been shown to reduce tumor growth and slow the spread of ovarian and lung cancer.

blood sugar control

The benefits of onions can also help control blood sugar. This is especially important for people with diabetes or prediabetes. Specific compounds found in onions, such as quercetin and sulfur compounds, have antidiabetic effects. For example, quercetin has been shown to interact with cells in the small intestine, pancreas, skeletal muscle, adipose tissue, and liver to control blood sugar regulation in the body.

moderate blood pressure

Quercetin, a compound found in onion peels, has been linked to lowering blood pressure when researchers took it extract and as a supplement. Onions can also reduce the stiffness of blood vessels and lower blood pressure levels.

Increase bone density

The benefits of onions can help support strong bones. Onions are believed to help reduce oxidative stress, increase antioxidant levels and reduce bone loss. It can prevent osteoporosis and increase bone density.


Onions can fight bacteria such as Escherichia coli (E. coli), Pseudomonas aeruginosa, Staphylococcus aureus (S. aureus), and Bacillus cereus. Onion extract has also been shown to inhibit the growth of Vibrio cholerae, a bacterium that is a major public health concern in developing countries. Quercetin extracted from onions appears to be a very powerful way to fight bacteria.

Improve digestive health

Onions are a great source of fiber and prebiotics, which are essential for optimal gut health. Gut bacteria feed on prebiotics and produce short-chain fatty acids, including acetic, propionic, and butyric. These short-chain fatty acids boost gut health, boost immunity, reduce inflammation and improve digestion. In addition, eating foods rich in prebiotics helps increase probiotics such as Lactobacillus strains and bifidobacteria that are beneficial for digestive health.

Prevent inflammation and allergies

Quercetin and other flavonoids in onions may help prevent inflammation. Onions also treat allergies by preventing cells from releasing histamine. Cooking with onions can help open and drain the sinuses. Quercetin’s antihistamine properties may also help reduce nasal congestion.

Boost the immune system

Onions contain selenium which stimulates immune function. This mineral also prevents an exaggerated immune response, which can have adverse effects. Selenium-deficient immune cells develop and reproduce inefficiently. These cells also have difficulty producing important proteins and transporting calcium.

Improve eye health

The sulfur in onions improves the health of the eye lens. It stimulates the production of a protein called glutathione, which acts as an antioxidant. Onion extract can also help in preventing the development of corneal haze.

Good for oral health

Onions contain thiosulfinates and thiosulfonates (sulfur compounds) which help reduce tooth decay-causing bacteria. This vegetable is also rich in vitamin C which can maintain healthy teeth. Onions are also believed to relieve toothache.

Healthy skin

Onions contain vitamins A, C, and E – all of which contribute to healthy skin. Vitamin C is important for giving glow to the skin. Onions can also protect the skin from bacteria thanks to its strong antiseptic properties.

Fight aging

Onions have enormous anti-aging benefits. Antioxidant vitamins A, C and E fight damage caused by harmful UV rays and prevent free radical damage that causes premature aging of the skin. Onions are one of the richest sources of quercetin, the most powerful antioxidant that can keep skin wrinkle free. Vitamins and sulfur, on the other hand, protect the skin and keep it soft and supple.

Fight acne

The antimicrobial, antibacterial, and anti-inflammatory qualities of onions can protect the skin from bacteria that cause acne and other skin infections. Apart from topical application, regular consumption of onions can also give amazing results in case of acne.

Treating insect stings

The benefits of onions can be used to relieve insect stings and bites. Onion’s anti-inflammatory properties help reduce burns, itching, and swelling caused by insect bites.

Get rid of black spots

Onion juice is excellent for removing dark spots and pigmentation. Various kinds of phytonutrients and antioxidants in shallots nourish the skin while removing skin impurities.

Promote hair growth

Onions contain sulfur or sulfur, which is also found in amino acids. Keratin (an important hair protein) is also rich in sulfur and is needed for strong hair. When applied to the scalp, onion juice provides this extra sulfur for stronger, thicker hair. This sulfur can also stimulate the production of collagen – which helps the production of healthy skin cells, and hair growth.

Overcome dandruff

Onion juice can work as a great dandruff cure. It can kill the bacteria that promote the growth of dandruff. Apart from dandruff, onions can also help treat other scalp infections.

Remove lice

The sulfur in onions also helps get rid of head lice. Massage the head with onion juice, leave it for about 2 hours. Wash with warm water. Dry your hair, and use a lice comb to remove head lice.

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