The Health Benefits of Red Onion Juice

The Health Benefits of Red Onion Juice

They are great with salad and I couldn’t stomach a hot dog without them…but consuming onion juice has never really been at the top of my health ‘to do’ list!

I first came across the subject of health benefits of red onion juice about three months ago when a regular visitor to this site brought it up in response to a comment (cheers Sally!).

Okay, my first response was to cringe a bit…and then wonder what poor Sally was doing to herself?

But being skeptical with new health ideas is really not ‘on the cards’ for me – this site would become one boring (and lonely) place to be.

I came to find that red onion juice is actually nothing to cringe about – it has a ton of benefits for those who are brave enough to stomach it…

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Good Old Onions!!!

Historical research shows us that onions have been circling around human cultivation for  well over 7000 years now.

Some archaeological projects have uncovered proof that onions date back to the Bronze Age…but it’s unclear whether or not these onions were wild or cultivated.

Archaeological and literary evidence such as the Book of Numbers 11:5 points to suggestions that onions were probably being cultivated around 2000 years later in ancient Egypt.

onions were probably being cultivated around 2000 years later in ancient Egypt

Apparently onions were held in high regard by Egyptian authorities due to their spherical shape and concentric rings, which were known for symbolizing eternal life.

Moving onto the Middle Ages, onions were often handed over as rather exotic (and expensive) gifts. At the time they were thought to be extremely powerful and used to treat a host of ailments/conditions.

Onion Juice Health Benefits

1) Onion Juice Benefits For Hair

Onion juice manages to boost blood circulation which leads to hair follicles being provided with sufficient nourishment.

Onion Juice Benefits For Hair

The vegetable also contains certain anti-bacterial properties that combat various scalp infections that can be attributed to hair loss.

Onions are also thought to be loaded with the enzyme catalase, which is an anti-oxidant that can prevent premature graying of hair.

2) The Cardiovascular Advantages of Onions

Regularly including onions in your diet can lead to a reduction in cholesterol levels. This is all down to the sulfur compounds, chromium, and vitamin B complex they contain.

These three important ingredients actually lower the risk of cardiac arrest by regulating homocysteine levels.

3) Onion Juice Benefits For Skin

Onions contain high levels of flavonoids and vitamins C, A and E. These help in protecting our skin cells from the damaging effects of ultraviolet rays.

Onion Juice Benefits For Skin

The antibacterial properties of onions lead them to being antiseptic and anti-inflammatory by nature. This means they are an excellent natural remedy for acne and other skin bacteria.

Onions are also known to contain large amounts of sulphur-rich phytochemicals which are very effective in taking on free radicals. This means they can be used to combat the untimely aging appearance of skin.

4) Onion Juice Fights The Cold Virus

My granny used to swear by onions whenever she had a cold – at the time we pretty much all thought she was crazy but she really didn’t get ill that often…

Onion Juice Fights The Cold Virus

This cold-fighting process is apparently down to the smelly sulfur compounds found in onions – they have mucolytic properties that are excellent at stopping the excessive formation of mucus.

If this mucus manages to build up in our body it can frequently trigger the common cold virus.

5) Protection Against Allergens

Onions contain high levels of the antioxidant known as quercetin – a powerful aid in the fight against a large number of allergic reactions.

The quercetin property is absorbed into the body through the intestines and stays in circulation for a very long time. This gives the body lasting protection from allergic reactions as well as chronic inflammatory conditions such as asthma.

6) Onions Aid Digestion

Proper digestion plays a big part in how the general health of our body pans out. If we have problems digesting the food we put in ourselves we will end up with more diseases effecting us.

These digestive diseases can include gallstones, cholangitis, GERD, and hiatal hernia.

Onions Aid Digestion

Onions contain high levels of a soluble dietary fiber called inulin which functions as a natural regulator. It ‘regulates’ by keeping the body’s good bacteria at the level needed to maintain a healthy digestive system.

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21 thoughts on “The Health Benefits of Red Onion Juice

  1. Interesting article, I never really knew about the Egyptians symbolizing onions with eternal life 🙂 Onions have indeed a lot of good qualities and are extremely potent in various Ayurvedic healing remedies, which I am very familiar with, since I studied them for the last 25 years.
    I personally have used it to prevent hair loss during cancer treatments and although I initially lost my hair, the second time around my hair stayed. I also like to make a concentrated onion and garlic soup once a week during the flu season, it keeps the viruses at bay!

    1. Very interesting stuff – thank you for mentioning the cancer link here as I was not really aware of it beforehand (also, sorry to hear of your illness – glad to hear that you seem to be getting better!).

      I would love to hear more about this flu-fighting onion and garlic soup – any recipe to go along with that? 🙂

  2. This is a very interesting article. I had no ideas that onion juice had so many benefits so I’ve bookmarked this baby to show to my partner!

    I’m particularly interested in the benefits of reversing hair loss, as well as the benefit of having more youthful skin – at the end of the day none of us are getting any younger are we?

    I also heard that onions were good for fighting against dementia – have you heard anything about this?

    So what’s the best way to make this onion juice? do you use a juicer? Is there any other way to get the juice out of the onion?

    Do you just eat this onion juice straight up, or can I use some other liquids to reduce the bad taste of onions?

    Thanks for your response in advance – great article!


    1. Hi Marc,

      Well first off the bat I have to admit that my partner actually makes the onion juice for us…but I STILL prefer the whole vegetable in my food instead of the plain juice option (for very obvious reasons!).

      Remember – as long as you are adding onion to your food, and not nuking the sh#t out of it…you are getting plenty of onion juice!

      The juice is also a great option to add to cookery meals and sauces.

      I have heard about the dementia link but I’m in no way a medical professional – so I won’t comment too deeply on that part.

      In my experience a juicer is fine – but I don’t know the exact ingredients my partner uses. I think I’ll ask her and add the recipe to the article…

      Hope this helps mate!

  3. Hi there,

    Who would’ve thought eh??? Onions are one of my favorite foods but I’m not sure about drinking in juice form! Unless you have a recipe? I can’t imagine just gulping down onion juice but if it was part of a good recipe it may be tolerable.

    Someone from Sri Lanka once said to me that onions were good for the brain. I’m not exactly sure what he meant by that, have you come across this in your research? What about white onions? Are these just as good?

    1. Hi there Craig!

      Yes both forms of onion juice (or onions in general) are very good for you. I wouldn’t recommend gulping down raw onion juice on it’s own – create some sort of base recipe first mate!

      I have also heard about the brain advantages with onions but I don’t really have enough info on it to comment properly – I don’t want to give out misinformation here after all.

      Thanks for stopping by to read our work and a big thanks for taking the time to comment. Hope to see you here again soon in the future!

  4. Hi Chris,

    I absolutely love onions in my food so I really enjoyed reading your article. I was surprised to see that you can use the juice as an additive to hair loss treatment. I have had brain surgery in the past due to cancer and I have a few spots on the back of my head that are thinning out real bad. I wonder if this could help me at all.

    Not to mention that I also have a normal receding hairline in the front of my head as well.

    Do you happen to have a recommended product for hair loss that I could add the onion juices too?

    I was thinking like some Rogaine or other product like that.

    I really enjoy the section about the cold prevention. My wife gets angry with me because I don’t get sick as often as she doses and I tell her it’s because of two reasons.

    Number one – I don’t get the FLU vaccine and I never will. I’m not going to get an injection that will make me sick in order not to get sick the rest of the season. Yes, this is MY conspiracy theorist side talking.

    Number two – I eat onions in everything, okay maybe not in everything but they are in my daily diet for sure!

    She just rolls her eyes at me and then when she tells me that she is sick , I roll my eyes at her!

    I love the post!
    Thank you , Chris, for writing and sharing!

    1. Hmmm that’s a good point David…I’m not really sure if it can be added to a hair loss product…maybe taken along side it would be a better idea?

      I love that flu vaccine conspiracy theory mate – I own a Mysteries website as well as this one so I may well use that for an article there! 🙂

      Thanks so much for taking the time to comment on this article – sorry to hear about your past poor health but it sounds like you’re on the mend now!

      Take care and stay healthy!

  5. What an interesting read about Onions! I’ve never known that much about them until I read this post. Wow, they can really help in a lot of ways.

    I love to eat onions in a lot of dishes we cook at home. After reading your post, I think we might have to incorporate them more into our diet. Onion juice really helps fight the cold virus? I’m forever fighting colds in our house. It’s like a continuous cycle of colds going from one person to the next.

    What would be the best way to serve onion juice to young kids? I’m guessing the having it straight might not work, but can you mix it with other fruit or vegetable juices?

    1. With kids I find it best to introduce the onion as a whole to them. For example, in our house we load up frozen pizzas with chopped onion before we chuck them in the oven – you have to be clever with kids (as you probably already know Andrew!).

      I hear you on the subject of colds – kids = colds…about 12 times a year LOL. They seem to be walking incubators of virus 99% of the time! Get on the onion juice and battle the viruses down mate!

  6. I found your article very interesting, although the thought of putting onion juice on my head made me laugh. You would need to be alone during this process and love the smell of onions.

    I was wondering if there is any difference between varieties of onions as far as health benefits. Is one better than another? You started out talking about red onions, but seemed to apply the benefits to all onions. Just curious.

    I am definitely an onion lover, I add them to almost everything I cook.

    1. Hi Sue,

      The benefits are near enough the same with all forms of onions really – we just chose red onions as the title due to it being a wicked keyword (i.e. this article ranks very well in Google’s results!).

      Sorry if we confused you – just take the article as covering ALL onions! 🙂

  7. Thank you for your educational article regarding the red onion,

    Like yourself, I had never considered the red onion as a juice or had delved into it’s historical past to discover that it had been around for over 7,000 years. 

    However, I am a fan of the red onion and it clearly has many health benefits therefore I may be willing to include more red onion in my diet though I doubt it will be able to much for my receding hairline which is probably now beyond rescue.

  8. Great article… I will never look at onions the same way again!  


    My parents are always looking for more health hacks and this is a great one!

    I’ll be sure to share it with them.

    Appreciate you taking the time to share all this information.

    Would just having regular onions in my salad (which I usually avoid,…) be also healthy?

  9. Onions are really good, it’s pity that they don’t test good lol and they make me cry when I’m peeling them off, but I think they are worth it because they are so healthy, I make sure I add onion on my food, another benefit I know about onions is they are good for the eyes too!

  10. Great post and informative as well. 

    I have always eaten onions and use them in about everything that I cook. What is in them that makes your eyes water? I have always heard that your body will crave what it needs and I do crave onions from time to time. I couldn’t imagine chili, without them as most things that I cook has onions in the mix.

    Have you tried the wild onions? I remember picking and eating them as a youngster. To this day I can nibble on one and be taken back in time.

    1. I have experienced wild onions Paul – there are a lot around the forests where I live in South Wales (and I also used to pick them as a child for my mum!). 

  11. I found this post very interesting and helpful. I never knew that onion juice could have so much health benefits. The part that really caught my attention was the bit that talked about how it can cure a cold!. I’ve kinda been struggling with a cold for a while now. I’m definitely not gonna like the taste of an onion juice but I’m willing to give it a shot if it helps out with my cold. Thanks again for this post I’m glad I stumbled on it

    1. Hi there – you don’t have to digest it in juice format mate, why don’t you just add a load to a stew or a salad instead?

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