Onions’ Benefits Based On Science

Onion is a very nutritive vegatable. Onions contain antioxidants, minerals, vitamins, and amino acids. You can lose weight if you consume boiled, raw or cooked onions. What is more, onion can also aid you in boosting the cardiovascular system, improve your immunity and lower inflammation.

There are several types of onions, all of them contain antimicrobial properties. Onion can be yellow, red, and white. They can have different taste and sharp. Red onions are the ones who contain more antioxidants than yellow and white onions. Onions come from Allium genus which is also a compound of vegetables such as garlic, green onions, leeks and chives

We will discuss why onions are great for your health. We will also show you how to use onions in home remedies.

White Onion vs. Red (Purple) Onion vs. Yellow Onion

The most common type of onion that is used in cooking is yellow onions. These onions have yellow skin and white flesh, they have a sharp flavor. During the cooking process they became sweeter and softer.

What is the difference between white onions and yellow onions? According to people, white onions have crispier flavor than yellow onions.

Red onions, which are often referred as purple onions, are usually used in salads and eaten raw. Red onions contain more antioxidants than other types of onions, and for this reason they could be the healthiest among other onions.

Nutritional Value of Yellow, White And Red Onions

All types of onions are very healthy, therefore is no significant difference in their nutritional value. All onions contain vitamins, minerals and beneficial micronutrients as well.

As per the Department of Agriculture in United States, red, yellow, and white raw onions have 40 calories per 100 grams. A medium-sized onion has almost 2 grams of fiber which is 7% of the suggested daily consumption. (1)

100 grams of onions contain 9.3 grams of carbs and nearly 4 grams of sugar. But different types of onions have different amount of sugar.

Onions contain essential amino acids responsible for the metabolic processes in your body. One of the most important amino acids include lysine, threonine, leucine phenylalanine. (2)

All the mentioned types of onions contain Vitamin C and vitamin from B group. They also contain minerals such as calcium, manganese, and iron. Spring onions ( scallions) are sometimes called green onions. The green onions are also very nutritious. One large scallion (25 g) contains 52 mcg of vitamin K (65% RDI), 4.7 mg vitamin C (8% RDI), and all the essential amino acids that are found in other types of onions. (3)

Onions are full of antioxidants

You can boost your immune system if you consume cooked or raw onions. Onions are excellent source of dietary flavonoids and antioxidants. As per research, yellow onions have between 270 and 1187 mg flavonoids per kilogram of fresh onion. On the other side, red onions have more antioxidants – between 415 and 1917 mg per kilo of red onion. (4)

What is more, red onions contain an antioxidant compounds called anthocyanins. These compounds can aid you in protecting against numerous diseases. Anthocyanins compounds may make up about 10% of the total flavonoid content in red onion. (4, 5)

Onions also contain an antioxidant called quercetin. According to research, quercetin contains antimicrobial properties and aids in reducing blood pressure. (6, 7) red onions have more quercetin than white and yellow onions. (8)

There all also studies, which showed that the sulfur compounds of onions contain anticancer properties. (9)

Red and yellow onions are healthier than white onions. This is because red and yellow onions contain more antioxidants. (10)

Health Benefits of Onion

We will now discuss why onions are healthy option that should be included in your diet.

Onions Keeps Your Heart Healthy

According to the Journal of Hypertension, there is a connection between eating onions and lowered risk of cardiovascular disease. According to one study, after a 6 month, people who had type 2 diabetes had lowered risk of getting heart disease, if they consumed onions regularly. (11)

Quercetin is one of the reasons why onions are good for your cardiovascular health, stated by researchers. (12)

Further reading: The best foods you can eat to keep your heart healthy.

Onions reduce blood pressure

It is a good idea to eat onions every day if you have high blood pressure because onions may help to lower hypertension.

Onions can aid in lowering blood pressure. A study which was observing the effect of onions and blood pressure discovered that the antioxidants in onion contain anti-hypertensive effect. Onions affected enzymes and compounds that are linked to high blood pressure, as per research. (13)

Also, you can reduce the blood pressure if you drink onion skin tea. You will improve vascular health due to the quercetin which is found in onions. (14)

There is a confirmation that the intake of raw onion can reduce the blood pressure. Researchers have discovered that ingredients in Mediterranean diet can aid in reducing blood pressure. also evidence to suggest that increasing your consumption of raw onion can help lower blood pressure. (15)

Learn about other ways to lower your blood pressure without medication.

Consuming onions prevents clotting

Onions contain anticoagulant properties.

According to a study, onions are better in preventing blood clotting than garlic.(16) Other studies discovered that mix of raw onions and garlic will aid in preventing that blood cells clump together. (17)

Onions can reduce blood cholesterol

Onions consumption improves your cardiovascular health because they reduce serum cholesterol levels.

Onions aid in increasing certain compounds which can lower the bad cholesterol. (18)

Clinical trials that involve adult, discovered that onions have reducing effect over cholesterol. After 8 weeks consumption of onions, scientists noticed that there was a significant reducement in total blood cholesterol. (19)

Learn about other effective ways to reduce high cholesterol naturally.

Raw Onion is Good for Weight Loss

The journal Experimental and Therapeutic Medicine, states that you can prevent obesity and lose weight if you consume onions peel tea. As per scientist, the intake of flavonoids rich foods can manage weight. Onions are among the foods which are riched with flavonoids. (20)

According to researchers, onion skin tea is able to treat, prevent, and manage obesity. (20)

Other studies showed that onions can regulate blood glucose levels and reduce body weight. (21)

If you don’t like the taste of onion skin tea, discover how to make ginger tea in order to burn belly fat.

Onions Have Antimicrobial Properties

Onions kill certain types of germs and bacteria due to its antimicrobial properties.

Research, which was published in 2016, showed that there is antibacterial effect in onions, due to its containment of flavonoids and phenolic acid compounds. According to researchers, red onion, green onion, and white onion aid in eliminating kill various strains of bacteria including Methicillin-sensitive Staphylococcus aureus (MSSA). (22)

Other studies showed that onions have anthocyanins and quercetin that have various of health benefits including antibiotic effcts. (23)

The International Journal of Biological Macromolecules, in 2018, stated that onions have antioxidants actions. Onions have polysaccharides which contain an antimicrobial effect and potential use in the medical industry. (24)

What is more, there is also a proof which shows that onions are effective against oral bacteria that cause gum disease. However, cooking onions have reduced antibacterial activity. (25)

Onions Stimulate Healthy Digestion

Onions stimulate healthy digestion. They contain compounds which are good for the digestion system. Onion consumption can aid in preventing bacteria called Clostridium difficile-related diarrhea.

Onions contain a oligofructose, which is a type of dietary fiber. A study which was observing the effects of oligofructose on the digestive system discovered that it has a prebiotic effect. Consuming oligofructose aided in preventing recurring diarrhea that was associated with C. diff infections. (26)

According to The Journal of Nutrition, onions contain about 25% of oligofructose and inulin which are types of plant-based fiber. (27)

Onions Boost Your Immune System

Onions aids in strengthening your immune system and are good against body resist infection.

According to scientific research, vegetables such as onion and garlic aid in improving the immune system of the body. Extracts of onions aid in increasing white blood cells, which are essential for your immune system. As per scientists, onion (Allium cepa) has “immune boosting capabilities.” (28)

As per other studies, antioxidants in onions like quercetin aid in improving immunity and increase cells which make your immune system stronger. There are 25 different flavonoids in onions. They all have crucial role in boosting the immune system. (29)

Here are 10 steps that can boost your immunity today. You can also prepare this homemade tonic. wonderful health tonic.

Raw Onions Contain Anti-Inflammatory Properties

Onion consumption can reduce inflammation in your body.

Even though short-term inflammation is needed to kill infections, long-term inflammation can result in chronic diseases such as diabetes, heart disease, and cancer.

Onions’ sulfur-rich compounds help in preventing inflammation, stated by one medical journal (30)

Other studies discovered that onions aid in protecting the health of the liver, when consumed as part of a healthy diet. (31)

Onions Can Regulate Blood Glucose Levels

Onions can also help you if you cope with diabetes, because they regulate blood glucose levels.

As per one study, a diet enriched with onions has reduced the blood glucose. Onions lowered blood glucose in patients who had type 1diabetes and type 2 diabetes. (32)

Other medical trials showed that onions reduce blood glucose after a meal. The effect of reduce may be due to delaying absorption of glucose through inhibition of the enzyme sucrase in the intestinal tract. (33)

Onions Aid In Bones Strengthen

Onions’ compounds like antioxidants and flavonoids can protect bone health and prevent development of brittle bones.

As per, the journal Menopause, intake of onions can aid in increasing bone density in perimenopausal and postmenopausal women. Women who often consume onions can reduce the risk of hip fracture by more than 20%. (34)

Another study showed that eating onions can prevent breakdown of tissue in bones and prevent bone density loss. These are 2 conditions which can result in osteoporosis. (35)

The journal Food & Function discovered that people who consumed 100 ml of onion juice daily may increase bone mineral density. The intake of onion juice increases antioxidants and reduces the number of free radicals. (36)

Red Onions Ameliorate Male Prostate Health

Consuming onions is also beneficial for men. Red onions can prevent certain prostate problems that can occur in men.

As per clinical trials, which included adult men, discovered that eating onions can aids in protecting prostate health. Namely, men who consumed more than 10 grams of Allium vegetables such as onions have a significantly reduced risk of prostate cancer. (38)

If you are a man, discover how to spot the first signs of prostate cancer.

Onions Contain Anticancer Properties

Onions consumption can prevent getting cancer.

Studies have showed onion and garlic consumption and their role in reducing the risk of cancer, that Allium vegetables have an anticancer effect. Increased consumption of onions is linked with reduced risk of getting cancer. Onion is powerful against stomach cancer, colorectal cancer, esophageal cancer, and prostate cancer. (39)

Another studies, showed that cooking with crushed onions doesn’t eliminate the sulfur-rich compounds which have an anticancer effect. (39)

Discover more about other foods you can add to your diet that can help prevent cancer developing.

Onion Juice Can Improve Hair Growth

Onion juice can improve hair growth and make it stronger. This juice improves blood circulation and nourishes the hair follicles. Onions also contain anti-bacterial propertieshelp you re-grow your hair and make it stronger. The onion juice improves blood circulation and helps with scalp infections.

As per a study, participants who consumed onion juice twice daily, had improved their hair growth, compared to those participants who didn’t consumed the onion juice. The success was better in men than in women. (43)

Onion Kills Intestinal Parasites

The onion’s sulfur compounds are anti-parasitic. Onion juice is very beneficial for intestinal worms, especially tapeworm and thread worms.

A study published in the journal Parasitology Research, states that onions can lower the number of parasites in animals. When onion is added to coconut flakes and food, all the parasites were almost eliminated. (44).

Squeeze the juice from an onion for about 2 teaspoons in order to use onion as cure for parasite cleaning. Combine the onion juice with some raw plain yogurt and consume every day. Consume this juice for 3 weeks and you will completely remove parasites and intestinal worms.

You can also intake some foods and herbs that naturally kill intestinal parasites.

How Long Are Onions Good For?

Onions should be stored in a cool, dry place which has ventilation.

The Journal of Food and Drug Analysissays that if you store onions adequately, their antioxidant level will increase. As per researchers, the amount of phenolics, antioxidants, and flavonoids in onions were highest after 3 months of storage. (40)

Suggested Intake Of Onions (Daily)

According to Drugs.com, clinical trials are cannot provide recommended dose of onions. However, daily dose include: 50 g of fresh onion, 50 g of fresh onion juice, or 20 g of dried onion .(46) 50 gram of fresh onion equals to about 1/3 cup of chopped onion.

Onions’ Side Effects

Onions are a delicious, healthy and tasty vegetables. Their consumption has many health benefits.

As per doctors from WebMD, a side effect of onion can be dermatitis if onion juice irritates the skin. Some people, have stomach pain after consuming raw or cooked onions.(41)

You may have bad breath if you consume to much onions on daily basis. (42)

The Use of Onions In Home Remedies

You can make home remedies from onions. They can cure several health issues. We will now show how to use onions in the form of home remedies.

Clearing eyes irritation

Eye irritation can be really annoying. Instead of rubbing your eyes, make the following:

  • Cut an onion in half.
  • Take half the onion and hold it directly below the irritated eye, don’t touch the eye!
  • The tears will flow and you will get rid of the debris.

Treat vomiting

In order to treat vomiting, try this:

  • Strain the liquid from one whole white onion.
  • Brew a mug of peppermint tea.
  • Drink two teaspoons of onion juice
  • Drink the mug of tea after 5 minutes
  • Repeat this process until vomiting stops.

Onions for wart removal

Try the following natural cure against warts:

  • Cut onion just the same size as the wart.
  • Place the onion onto the wart and put a gauze.
  • Change the onion piece and the gauze every day.
  • After few days, the wart will be gone.

You can also use apple cider vinegar for wart removal.

Removing earwax and earache

In order to remove earwax and earache, try the following:

  • Cut an onion, reserving the innermost core.
  • Cut the core of the onion into an ear-canal sized plug.
  • Place the onion core into your ear and leave it until next day.
  • The next day, remove the onion piece and cleanse the ear.

Yu can also use homemade garlic mullein oil for ear infection treatment.

Remove sore throat and cough

Make effective homemade syrup in order to remove sore throat and cough:

4 tbsp. quality honey
1 onion, chopped
3 cm fresh
grated ginger

  • Pour the honey and add chopped onion and grated ginger.
  • Leave the mix at least 6 hours, or whole night. ture overnight or at least for 6 hours.
  • Take a teaspoon of the natural remedy and you will get relieved from cough.

Relieve wisdom teeth pain

In order to relieve from teeth pain, place a slice of onion in the sore area. There is also some home remedies to get rid of wisdom tooth pain that you can make it at home.

Relieve mosquito bites

Place a fresh slice of onion on the affected area, and wait for several minutes until the itching subsides. Then wash with water. There are also other natural ways to relieve mosquito bites.

Onion for feet detox

There is an option for avoiding cold and flu by putting onions on your feet.

How to use onions in sock under your feet:

  1. Slice an onion into several thick slices.
  2. Place in a pair of tight-fitting socks.
  3. Put the onion in the socks.
  4. Leave them for several hours in order to get rid from cold or flu.