6 Science-Based Health Benefits of Oregano (2024)

Nutrition

6 Science-Based Health Benefits of Oregano (1)

By Rachael Link, MS, RD Updated on October 27, 2017

Oregano is considered a staple herb in many cuisines around the world.

It has a strong flavor and brings warmth to dishes, along with a hint of subtle sweetness.

It can be found fresh, dried or as an oil, and all are said to have significant health benefits.

Though typically used in small amounts, oregano packs in some important nutrients. Just one teaspoon of dried oregano can fulfill about 8% of your daily vitamin K needs (1).

From helping fight bacteria to reducing inflammation, studies have unearthed some of its impressive potential benefits.

This article looks at 6 evidence-based health benefits of oregano.

1. Rich in Antioxidants

Oregano is rich in antioxidants, which are compounds that help fight damage from harmful free radicals in the body.

The buildup of free radicals has been linked to chronic diseases like cancer and heart disease (2, 3).

Several test-tube studies have found that oregano and oregano oil are high in antioxidants (4, 5).

Oregano essential oil is especially high in carvacrol and thymol, two antioxidants that can help prevent damage to cells caused by free radicals (6).

In combination with other high-antioxidant foods like fruits and vegetables, oregano could provide a hearty dose of antioxidants that may help improve your health.

Summary: Oregano is high in antioxidants, which can help prevent damage by neutralizing disease-causing free radicals.

2. May Help Fight Bacteria

Oregano contains certain compounds that have potent antibacterial properties.

One test-tube study showed that oregano essential oil helped block the growth of Escherichia coli and Pseudomonas aeruginosa, two strains of bacteria that can cause infection (7).

Another test-tube study found that oregano was effective against 23 species of bacteria (8).

Furthermore, a test-tube study compared the antimicrobial activity of oregano, sage and thyme essential oils. Oregano was one of the most efficient essential oils against bacteria, second to thyme (9).

Current research is limited to test-tube studies that have used concentrated amounts of this herb. Thus, further research is needed to determine how these results could affect humans.

Summary: Test-tube studies have found that oregano and its components may be effective against certain strains of bacteria.

3. Could Have Anti-Cancer Properties

Oregano is high in antioxidants. These compounds can not only neutralize free radical damage, but they may also aid in cancer prevention (2).

Some test-tube studies have shown that oregano and its components may help kill cancer cells.

One test-tube study treated human colon cancer cells with oregano extract and found that it stopped the growth of cancer cells and helped kill them off (10).

Another test-tube study showed that carvacrol, one of the components in oregano, also helped suppress the growth and spread of colon cancer cells (11).

However, keep in mind that these were test-tube studies using high amounts of the herb and its compounds. Human studies using typical doses are needed to determine its effects.

Summary: Oregano is high in antioxidants and contains compounds that have been shown to reduce cancer cell growth in some test-tube studies.

4. May Help Reduce Viral Infection

In addition to fighting off bacteria, some test-tube studies have found that oregano and its components may also protect against some viruses.

In particular, carvacrol and thymol are two compounds in oregano that have been associated with antiviral properties.

In one test-tube study, carvacrol inactivated norovirus, a viral infection that causes diarrhea, nausea and stomach pain, within one hour of treatment (12).

Another test-tube study found that thymol and carvacrol inactivated 90% of the herpes simplex virus within just one hour (13).

While these results are promising, additional research on how oregano may impact viral infections in humans is needed.

Summary: Carvacrol and thymol are two compounds found in oregano that have been shown to decrease the activity of viruses in some test-tube studies.

5. Could Decrease Inflammation

Inflammation is a normal immune response that occurs as a result of illness or injury.

However, chronic inflammation is believed to contribute to the development of diseases like heart disease, diabetes and autoimmune conditions (14).

Oregano is rich in antioxidants, which can help neutralize free radicals and reduce inflammation (15).

It also contains compounds like carvacrol that have been shown to have anti-inflammatory properties. In one animal study, carvacrol reduced swelling in the paws of mice by up to 57% (16).

Another animal study showed that a mixture of thyme and oregano essential oils reduced the number of inflammatory markers in mice with colitis, or an inflamed colon (17).

Remember that these studies looked at the effects of oregano and its components in highly concentrated amounts. Studies are needed to determine how a normal dose could affect inflammation in humans.

Summary: Oregano is high in antioxidants, which may reduce inflammation. Animal studies show that oregano oil and its components could help reduce inflammation.

6. Easy to Add to Your Diet

Though you may think of oregano as a topping reserved solely for pizzas and pasta dishes, this versatile herb can be used in many ways.

Try mixing whole oregano leaves into other greens for a nutrient-packed salad or sprinkling the leaves into chili, soups or stews.

You can also use it to make fresh pesto or salad dressing, season meat dishes or kick up the flavor of homemade sauces.

Oregano is available fresh, dried or as an oil, making it super easy to add to your diet.

Summary: Oregano is available either fresh, dried or as an oil, and it can be added to stews, dressings, sauces, meats and more.

The Bottom Line

Oregano is an herb that boasts some pretty potent benefits when it comes to your health.

It is high in antioxidants and may help fight off bacteria and viruses, potentially reduce the growth of cancer cells and help alleviate inflammation.

However, current research is limited to test-tube and animal studies. Further research is needed to determine its potential effects in humans.

Luckily, oregano is versatile, easy to add to your diet and can be incorporated into a wide variety of recipes in either fresh, dried or oil form.

Share this article

6 Science-Based Health Benefits of Oregano (2024)

FAQs

Does dried oregano have any health benefits? ›

Along with fresh oregano, even dried oregano provides good levels of vitamin C to the body. This helps as anti-inflammatory agents for the health as well as ensures proper resistance to various infections and diseases. Vitamin C is very much an important nutrient required by the body in good amounts.

What are the main nutrients of oregano? ›

Oregano contains pyridoxine, also known as vitamin B6, which is necessary for healthy blood vessels and skin. In addition to these nutrients, oregano is also a good source of magnesium, a necessary nutrient that many people have a deficiency in.

How is oregano leaves used for medicine? ›

Use this decoction (a concentrated herbal preparation) to calm irritated skin. Combine 2 Tbsp dried oregano or 4 Tbsp fresh oregano leaves and 2 ½ cups water. Let boil 10 min., then let sit on low heat 10 min. Strain and add 2 to 3 drops rose essential oil.

What is the scientific name of oregano? ›

Oregano (Origanum vulgare) is a sprawling woody shrub which can grow up to 1 m tall.

Does oregano heal the gut? ›

Oregano oil may benefit gut health by killing gut parasites and protecting against leaky gut syndrome.

Can I boil oregano leaves and drink it? ›

Overview. Oregano is an herb that's commonly used in cooking, especially in Mediterranean and Italian dishes. You can also brew oregano tea for drinking.

What does oregano do to your blood? ›

Oregano might slow blood clotting. Taking oregano along with medications that also slow blood clotting might increase the risk of bruising and bleeding.

What does oregano do for the brain? ›

Studies show that oregano extracts can help alleviate symptoms of depression and anxiety in humans and animals. Taking carvacrol, a potent medicinal compound found in oregano oil, has been shown to increase levels of dopamine and serotonin in certain parts of the brain, reducing symptoms of anxiety and depression.

Is oregano good for kidneys? ›

Oregano also works by protecting kidney cells against injury caused by calcium oxalate and other such crystals. Bacteria can affect any part of the body and can cause infectious diseases.

What is the health benefit of oregano? ›

Oregano is a medicinal herb with a long list of health benefits. It has anti-inflammatory, antibacterial, antiviral, and antifungal properties. It also helps in digestion. In addition, it is a versatile herb that can be easily incorporated into your diet and used in various recipes in fresh, dried, or oil form.

Is oregano a natural antibiotic? ›

Oil of oregano contains two powerful compounds called carvacrol and thymol, both of which have been shown in studies to have strong antibacterial and antifungal properties.

Which oregano is best for medicinal purposes? ›

Golden Oregano: antiseptic, stomach and respiratory ailments, anti-fungal, antibacterial, cancer.

What is the English version of oregano? ›

Oregano (Origanum vulgare), also known as pot marjoram, is a species of Origanum. It is native to Europe, the Mediterranean region and southern and central Asia. It is a perennial herb.

Is oregano male or female? ›

It bears white or pink flowers that are hermaphrodite (have both male and female organs) and are pollinated by bees. Will grow in any well-drained soil in full sun or partial shade.

Are there two types of oregano? ›

Greek oregano tends to be the most savory and earthy, while Italian is milder and Turkish is more pungent. Used fresh or dry, Mediterranean oregano is the choice for dishes from this region, tomato sauces, pizzas, grilled meats, and other dishes with strong flavors.

Can oregano cure inflammation? ›

Oregano is rich in antioxidants, which can help neutralize free radicals and reduce inflammation ( 15 ). It also contains compounds like carvacrol that have been shown to have anti-inflammatory properties.

Can oregano cure infection? ›

Because of its ability to protect against bacterial infection, topical oregano oil has been shown to be effective in wound treatment and healing, even killing off methicillin-resistant Staphylococcus aureus (MRSA). In addition to being a powerful antimicrobial agent, oregano oil also has anti-inflammatory effects.

Does oregano oil detox your body? ›

It has anti-inflammatory and antioxidant properties and strong antibacterial activity that can help cleanse the gut of pathogens and improve chronic gut symptoms.

Are oregano leaves poisonous? ›

Oregano poisoning is usually a mild condition caused by the consumption or ingestion of an oregano plant or the oregano herb. Although this spice is not very toxic, it may still cause intense digestive disturbances in your pet, including vomiting and diarrhea.

Is it okay to drink oregano everyday? ›

Because of its diuretic effects, drinking too much oregano tea may also cause you to use the bathroom more often. Generally, people that are allergic to herbs like mint, lavender, basil, thyme, sage, hyssop, and marjoram, may want to be more cautious with drinking oregano tea or using oregano in general.

Can I eat fresh oregano leaves Raw? ›

It's often too pungent to eat raw, so fresh oregano is best when used in the last 15 minutes of cooking, according to Newgent. Fresh oregano makes a great accompaniment to a pot of beans, a lemony marinade or a simple marinara sauce.

Is oregano effective against Covid? ›

Essential oils, like oregano

"There have been no essential oil studies with COVID-19 at all," says Dr. Swindells. See what pharmacist Ally Dering-Anderson, PharmD, says about the safety and usefulness of essential oils. The bottom line is that none of these supplements have shown efficacy against COVID-19 yet.

Who should not use oregano? ›

Allergies: Oregano can cause reactions in people allergic to Lamiaceae family plants, including basil, hyssop, lavender, marjoram, mint, and sage. Surgery: Large doses of oregano might increase the risk of bleeding. People who use large doses of oregano should stop taking oregano 2 weeks before surgery.

Does oil of oregano damage the liver? ›

In low doses over a short period of time, oregano essential oil is considered generally safe. However, high doses may be toxic to the liver.

Does oregano help you sleep? ›

Its calming and relaxing effects make it an effective sleep aid when diffused in the bedroom. Anti-allergenic and sedative, Oregano Oil reduces bodily reactions to allergens and airborne pollutants that cause inflammation, such as pollen and mold.

Is oregano good for nerves? ›

Oregano Oil

It is is also helpful in quelling anxiety and helping with difficulty sleeping. It induces feelings of inner serenity and calmness so that you are able to relax and fall asleep. For a restful, peaceful sleep, apply a few drops to the soles of your feet at bedtime.

Does oregano help hormones? ›

Others have shown that oregano can induce estrogenic responses in vitro and can also show estrogen-like activity [29], thus influencing steroid hormone balance.

How do you flush your liver and kidneys? ›

From your morning glass of water to that extra cup of herbal tea, here are four ways to cleanse your kidneys and keep them functioning strong.
  1. Hydration is key. ...
  2. Choose foods that support kidney health. ...
  3. Drink kidney-cleansing teas. ...
  4. Supplement with supportive nutrients.

What are the side effects of oregano? ›

Generally, potential side effects are minor and may include:
  • Mild stomach upset.
  • Allergic reactions, if you are allergic to plants from the mint family (such as basil, sage, mint, lavender, and marjoram)
  • Skin irritation, if oregano oil is applied topically in concentrations greater than 1%

Is oregano good for high blood pressure? ›

According to a September 2021 study published in the American Journal of Clinical Nutrition, people who ate more herbs and spices—in particular, cinnamon, turmeric and oregano—recorded lower blood pressure readings 24 hours later.

Is oregano a natural dewormer? ›

Helps Fight Parasites

Oil of oregano can also help fight parasites. In a 6 week study, 600 mg of oil of oregano reduced parasites in human participants. 77% of participants were completely cured. It's also effective for giardia and as a dewormer.

Is fresh oregano antiviral? ›

Oregano is a popular herb in the mint family that's known for its impressive medicinal qualities. Its plant compounds, which include carvacrol, offer antiviral properties.

Why do Italians use oregano? ›

Oregano is more flavorful in its dried form and is used more commonly in southern Italian and Sicilian dishes. Health benefits of oregano include high amounts of Omega-3s, iron, manganese, and antioxidants. It is used as an essential oil for its antibacterial properties.

What is another name for oregano? ›

oregano, (Origanum vulgare), also called origanum or wild marjoram, aromatic perennial herb of the mint family (Lamiaceae) known for its flavourful dried leaves and flowering tops.

Where did oregano originally come from? ›

Oregano comes from Origanum, a genus of the mint family (Lamiaceae). Oregano originally came from warm climates in western and southwestern Eurasia and the Mediterranean region. Oregano is a perennial plant that has the characteristics of an herb, green and leaflike, with round shaped leaves.

How do you use oregano leaves for a cough? ›

Oregano contains thymol and carvacrol, which both have antibacterial effects. People traditionally use essential oils containing thymol to relieve headaches, diarrhea, and coughs. People may find that taking oregano oil or rubbing it on the chest helps relieve cold symptoms.

What culture uses oregano? ›

Oregano is widely used in cuisines of the Mediterranean Basin and Latin America, especially in Mexican cuisine and Argentine cuisine. In Turkish cuisine, oregano is mostly used for flavouring meat, especially mutton and lamb.

Does oregano contain garlic? ›

Oregano's flavour is bold and gutsy; it wants to be noticed. The herb is a natural with garlic; in fact, it's hard to find a recipe that includes oregano but not garlic. I also like to use it along with lemon or steeped in vinegar. Strip the leaves off the stems.

Is oregano better fresh or dried? ›

The dried stuff certainly has its place (pizza, yes, and also dry rubs, vinaigrettes, and sauces, too), but fresh oregano is even more powerful and versatile.

Which is best fresh or dried oregano? ›

Oregano, for example, is sharper and more peppery fresh, while the dried stuff is flavorful but mild. Both are delicious, but they aren't identical. So, you'll want to use the two forms in different kinds of dishes. Sprinkle dried oregano on pizza, add to breading for eggplant parm or whisk it into a vinaigrette.

Which country is the largest producer of oregano? ›

Trends of Top 10 Exporters
CountryExport %
1Global
2China24.54%
3India11.76%
7 more rows

Is dried oregano just as good as fresh? ›

Oregano, for example, is sharper and more peppery fresh, while the dried stuff is flavorful but mild. Both are delicious, but they aren't identical. So, you'll want to use the two forms in different kinds of dishes. Sprinkle dried oregano on pizza, add to breading for eggplant parm or whisk it into a vinaigrette.

Is oregano better dried or fresh? ›

The dried stuff certainly has its place (pizza, yes, and also dry rubs, vinaigrettes, and sauces, too), but fresh oregano is even more powerful and versatile.

What are the disadvantages of oregano? ›

What are the risks of taking oregano and oregano oil?
  • In large doses, oregano oil may be toxic -- and even lethal.
  • Oregano may have diuretic effects.
  • Large amounts of oregano can upset the stomach.
  • Oregano oil may cause rash when applied to the skin.
24 Sept 2021

Does dried oregano have antiviral properties? ›

Essential oils of oregano are widely recognized for their antimicrobial activity, as well as their antiviral and antifungal properties.

Is dried oregano an antibiotic? ›

Oregano contains certain compounds that have potent antibacterial properties. One test-tube study showed that oregano essential oil helped block the growth of Escherichia coli and Pseudomonas aeruginosa, two strains of bacteria that can cause infection ( 7 ).

Should dried oregano be refrigerated? ›

As with all dried herbs, dried oregano should be kept in a cool, dark place in a tightly-sealed container and used within 6 months for the freshest flavor. It will not spoil if kept longer, but its potency will deteriorate greatly with time.

When should I take oregano? ›

Some of the most common uses of oregano include tomato-centric recipes, like pizza and pasta sauce, as well as olive oil-based dishes. Oregano is commonly combined with olive oil to create flavorful oregano oil, Italian vinaigrettes, and marinades for lamb, chicken, and beef dishes.

Is oregano good for everyday use? ›

Oregano (Origanum vulgare) is an herb used to flavor foods. It is considered safe in common food amounts, but has little evidence of health benefits. Oregano has olive-green leaves and purple flowers. It is closely related to other herbs, including mint, thyme, marjoram, and basil.

Can I eat oregano leaves Raw? ›

It's often too pungent to eat raw, so fresh oregano is best when used in the last 15 minutes of cooking, according to Newgent. Fresh oregano makes a great accompaniment to a pot of beans, a lemony marinade or a simple marinara sauce.

What does oregano do for sickness? ›

A 2017 study found that oregano essential oil, especially from the leaves of the oregano plant, has strong antioxidant properties. The researchers noted the traditional use of oregano oil in treating fevers and respiratory symptoms, which are both associated with the flu.

What herbs stop viruses from replicating? ›

2. ANTIVIRAL PROPERTIES OF SPICES AND HERBS
  • 2.1. Curcuma longa L. (turmeric) ...
  • 2.2. Zingiber officinale (ginger) ...
  • 2.3. Cinnamomum cassia (cinnanon) ...
  • 2.4. Syzygium aromaticum (clove) ...
  • 2.5. Piper nigrum (black pepper) ...
  • 2.6. Ocimum basilicum L. ...
  • 2.7. Allium sativum L. ...
  • 2.8. Azadirachta indica (neem)

Top Articles
Latest Posts
Article information

Author: Twana Towne Ret

Last Updated:

Views: 6047

Rating: 4.3 / 5 (44 voted)

Reviews: 91% of readers found this page helpful

Author information

Name: Twana Towne Ret

Birthday: 1994-03-19

Address: Apt. 990 97439 Corwin Motorway, Port Eliseoburgh, NM 99144-2618

Phone: +5958753152963

Job: National Specialist

Hobby: Kayaking, Photography, Skydiving, Embroidery, Leather crafting, Orienteering, Cooking

Introduction: My name is Twana Towne Ret, I am a famous, talented, joyous, perfect, powerful, inquisitive, lovely person who loves writing and wants to share my knowledge and understanding with you.