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17 Major Health Benefits And Side Effects of Onion Juice

Onions are utilized in almost every dish you eat. The benefits of onion juice go beyond the delicious flavor it imparts to your recipes. Onions are flowering plants in the Allium genus.

Onions have therapeutic benefits and are high in minerals and vitamins. These veggies are used to cure skin and hair problems, as well as diabetes, heart disease, and inflammation.

But what about taking onions in the form of juice? Is that going to assist you? This will be covered in this article.

What Are the Advantages of Onion Juice?

(1) May Improve Hair Health

The sulfur in onion juice stimulates collagen formation, which may aid in hair development.

An Iraqi study found that the juice can promote hair growth and treat illnesses such as alopecia areata (sudden hair loss). Individuals who washed their hair with onion juice saw higher hair growth in the study.

Onion juice may help improve the shine of your hair. The juice’s antibacterial qualities may aid in the treatment of scalp infections. Stronger hair follicles are associated with a healthy scalp.

onion juice benefits

(2) Can Delays Wrinkles

Onion juice contains flavonoids and other antioxidant substances that may help to avoid the indications of premature aging.

Onion juice’s supposed anti-aging qualities may also be related to its sulfur component, which, according to some sources, can promote collagen formation and prevent premature aging. More research is needed to confirm these benefits.

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(3) May Aid in the Treatment of Diabetes

The onion bulb extract may lower blood glucose levels, which is good news for diabetics.

The vegetable is low in calories and raises your metabolic rate, which can aid in the management of diabetes symptoms.

According to another Korean study, taking onion extract may help lower plasma glucose levels.

(4) Could Boost Your Immunity

Onions include selenium, a mineral that may help with immunity. Selenium stimulates the immune system while suppressing an overactive immunological response.

In addition, immunological cells lacking selenium are more prone to oxidation. These cells also struggle to produce protein and transfer calcium.

People suffering from asthma and other respiratory diseases may benefit from onion juice as well. Some say the juice also stimulates and strengthens the excretory organs, particularly the lungs.

Onion juice contains quercetin, which can help reduce inflammation and allergies.

(5) May Aid in the Treatment of Nail Fungus

According to research, onion juice (aqueous extracts of onions) has antifungal characteristics that help combat Candida albicans, a pathogenic yeast that can cause fungal infections in people.

Using a cotton ball, apply the juice to the damaged toenail. You can also use a bandage or tape to secure the cotton ball to the toe. After an hour, rinse with lukewarm water to remove the juice. Pat dry. Once a week, do this.

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(6) May Improve Sleep And Mood

More research is needed in this area. However, some research demonstrates that the folate in onion juice helps enhance mood and prevent depression.

Folate works by preventing the buildup of homocysteine, a molecule that prevents blood and other nutrients from reaching the brain. Excess homocysteine production also interferes with the generation of serotonin, the feel-good hormone.

Other chemicals, such as dopamine and epinephrine, also assist regulate sleep, and this is where the folate in onions comes in. It aids in the generation of these hormones in the body.

(7) Acne Treatment

Antimicrobial and antifungal capabilities are important here.

In one study, a gel containing onion extracts healed acne scars in patients. This gel enhanced the scar’s look by lowering redness and inflammation. The researchers found that onion extracts could be used as potential treatments for bacterial and fungal diseases.

Leave the onion juice on your face for 10 to 15 minutes. Warm water should be used to wash your face. But take care not to get the juice in your eyes. Also, avoid applying the juice to open blisters. Please consult a doctor before using the juice if you have sensitive skin.

According to some sources, the juice can also help with the treatment of psoriasis. There is, however, no scientific evidence to support this.

(8) May Aid in Cancer Risk Reduction

Onions contain anticancer chemicals such as quercetin, anthocyanins, and organosulfur. According to research, these chemicals may aid in the treatment of a variety of cancers.

According to research, the greater an onion’s flavor, the more effective its involvement in cancer prevention.

Quercetin has also been found to protect the brain from oxidative stress. Onions also provide fiber, which may help reduce the risk of colon cancer. This is notably true in animal research involving red onion juice. They help with cancer therapy and prevention by destroying tumor cells.

More research is required to fully comprehend the mechanism of onions in cancer treatment.

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(9) May Help With Inflammation

The quercetin in onion juice has been proven to block leukotrienes, prostaglandins, and histamines, all of which have been linked to osteoarthritis inflammation.

An Iranian investigation yielded comparable findings. When rats were given onion juice during the acute and chronic stages of inflammation, their condition improved. Fresh onion juice has been shown to reduce acute and chronic pain and inflammation, with a higher effect on inflammation alone.

Consuming onion juice can also help to avoid bone diseases caused by inflammation. According to research, consuming juice can improve bone mineral density in postmenopausal women.

(10) May Improve Your Vision

Onion juice’s antibacterial qualities can aid in the treatment of eye diseases such as conjunctivitis and blepharitis. Experiments on rabbits revealed that the juice could limit the growth of eye flora.

Cataracts may also be avoided by drinking the juice. In rat trials, injecting onion juice inhibited the growth of selenite-induced cataracts.

(11) Could Treat Ear Infections

According to a paper published by Cambridge University Press, onion juice has the power to heal ear infections and earaches.

However, additional research is needed in this area. Please consult your doctor before using the juice for this purpose.

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(12) May Improve Fertility

Studies show that the juice can raise testosterone levels. This can be due to onions’ antioxidant activity, which enhances sperm health. In a Jordanian study, male rats ingested onion juice, which increased their testosterone levels.

In another study, onion juice was demonstrated to promote copulatory behavior in sexually potent male rats. The juice accomplished this by increasing serum testosterone levels.

These are the several ways onion juice might help you. In the part that follows, we’ll show you how to make onion juice at home.

How Do You Make Onion Juice?

To make onion juice, follow the given steps.

  1. Peel and chop 3 to 4 onions.
  2. Place the pieces in a juicer and extract the juice.
  3. Put it in a container and drink it.
  4. You can also mix the pieces and eat the paste.

What Are the Side Effects of Onion Juice?

(1) Possible Obstacles During Pregnancy And Breastfeeding

Because there hasn’t been enough study done in this area, pregnant and nursing women should eat onion juice in moderation. For more information, talk to your doctor.

(2) May Lower Blood Sugar

Too Much Onion Juice Can Lower Blood Sugar. If you are already on diabetes medication, the juice may cause your blood sugar levels to drop significantly. Please consult with your doctor as the dosage may need to be adjusted.

(3) May Cause Bleeding Disorders

Because onion (juice) may decrease blood coagulation, it may increase the risk of bleeding. If you have a bleeding issue, avoid drinking onion juice. This is one of the reasons you should avoid onion juice at least two weeks before a scheduled surgery.

(4) May aggravate indigestion

If you have indigestion, avoid drinking onion juice because it can aggravate the problem. It may also cause acid reflux or other associated disorders.

(5) May Cause Skin Allergies

This may occur in people with sensitive skin. Before applying onion juice to your skin, please conduct a patch test.

While onions are widely used in cooking, onion juice has numerous health benefits. Onion juice, which is high in key vitamins and minerals, has therapeutic characteristics that can help enhance the health of your skin, scalp, and hair. While it helps to prevent the effects of aging and cure acne scars, it also fights inflammation and fungal infections. In addition, onion juice may assist enhance your blood sugar levels and boost your general immunity. You can simply prepare onion juice at home and consume it or use it topically to gain its many advantages.


This article provides general information about the topic and is not to be taken as medical advice or as an alternative to medical advice, treatment, and/or diagnosis. Always consult with your doctor before trying out any of the remedies/recipes suggested in the blog post.

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