What is Clove: Nutrition,16 Benefits,Side Effect and How to Use

Imagine a tiny, nail-shaped spice with an intensely aromatic fragrance and distinctive warm, slightly sweet flavor that has been treasured for centuries across various civilizations. That’s clove! They have been used in traditional medicine for over 2,000 years across Asia, Africa, and the Middle East. Today, modern science is catching up — and the research is genuinely impressive.

Whether you sprinkle them into your chai, tuck them into a holiday ham, or brew them into a warm tea, cloves are doing a whole lot more for your body than just adding flavor. In this article, we’ll explore the impressive nutritional profile of cloves, delve into their 16 evidence-backed health benefits, and discuss potential side effects. In addition, we will also share practical ways to incorporate this potent spice into your daily routine for optimal wellness.

What are Cloves?

Cloves are the dried flower buds of the Syzygium aromaticum tree, native to the Maluku Islands in Indonesia. These aromatic buds are harvested before they bloom and then dried until they develop their characteristic reddish-brown color.

The history of cloves stretches back over 2,000 years. They were among the most precious spices in ancient trade routes, valued not just for their culinary uses but also for their medicinal properties. In China, cloves were used as early as 226 BCE, not only as a spice but also for breath freshening—courtiers would hold cloves in their mouths when addressing the emperor.

In their whole form, cloves resemble small nails or tacks, which explains their name, derived from the Latin word “clavus,” meaning nail. When crushed or ground, they release a powerful, distinctive aroma characterized by notes of warmth, sweetness, and mild pungency.

The flavor profile of cloves is equally complex: intensely aromatic with a powerful, sweet-spicy taste that provides both heat and depth. This unique flavor is why cloves have become an essential ingredient in cuisines worldwide, from the warm spice blends of India to the holiday baking traditions of Western countries.

Nutritional Profile of Cloves

Here’s a look at the nutritional composition of ground cloves (per 100g):

Nutrient	Amount per 100g
Calories	274 kcal
Carbohydrates	65.5 g
Protein	6 g
Fat	13 g
Fiber	33.9 g
Vitamin C	80.8 mg
Vitamin K	141.8 µg
Vitamin E	8.8 mg
Calcium	632 mg
Iron	11.8 mg
Magnesium	259 mg
Phosphorus	104 mg
Potassium	1,020 mg
Manganese	60 mg
Zinc	2.32 mg
Eugenol	72-90%
Water Content	6.7%

Cloves are particularly rich in manganese, providing an impressive 60mg per 100g—more than 2,500% of the recommended daily intake! They also contain significant amounts of vitamin K, calcium, and fiber.

The star compound in cloves is eugenol, which makes up 72-90% of clove essential oil and is responsible for many of its medicinal properties. Cloves also contain other bioactive compounds, including flavonoids, tannins, and triterpenoids that contribute to their health benefits.

16 Science-Backed Health Benefits of Cloves

1. Loaded With Antioxidants

Cloves rank among the highest ORAC (Oxygen Radical Absorbance Capacity) scores of any food. Antioxidants neutralize free radicals — unstable molecules that damage cells and accelerate aging and disease.

Eugenol is the star here. Studies show it is significantly more effective than vitamin E at stopping lipid oxidation in cells. Adding even a small amount of ground cloves to your daily diet can meaningfully boost your body’s antioxidant defense system.

💬 “Eugenol has been shown to act as a potent antioxidant, inhibiting lipid peroxidation more effectively than alpha-tocopherol.” — Journal of Agricultural and Food Chemistry

2. Reduces Inflammation Throughout the Body

Chronic inflammation is linked to nearly every major disease — from heart disease to cancer to arthritis. Cloves contain eugenol and beta-caryophyllene, both of which are well-documented natural anti-inflammatories.

Beta-caryophyllene is particularly interesting because it activates CB2 receptors in the body’s endocannabinoid system — the same pathway targeted by some anti-inflammatory medications — without any psychoactive effects.

Regular consumption of cloves may help reduce systemic inflammation markers like C-reactive protein (CRP), making them a smart addition to an anti-inflammatory diet.

3. Supports Oral Health and Relieves Toothache

This is probably the most famous benefit of cloves, and for good reason. Eugenol is a natural analgesic and antiseptic that has been used in dentistry for well over a century.

Clove oil can:

• Temporarily relieve toothache pain
• Kill oral bacteria like Streptococcus mutans (a major cause of cavities)
• Reduce gum inflammation
• Fight bad breath (halitosis)

A 2021 study found that clove-based mouth rinses were comparable to chlorhexidine in reducing plaque and gingivitis scores. That’s a big deal for a natural remedy!

4. Helps Regulate Blood Sugar Levels

If you’re watching your blood sugar, cloves deserve a spot in your diet. Research shows that compounds in cloves — particularly nigericin — can help improve insulin sensitivity and lower blood glucose levels.

Cloves appear to work by:

• Mimicking insulin’s effects on cells
• Slowing the breakdown of complex carbohydrates
• Improving the uptake of glucose into muscle cells

In one animal study, clove extract significantly reduced blood sugar spikes after meals. Human studies are still emerging, but the early evidence is promising for people managing type 2 diabetes or prediabetes.

⚠️ Note: If you’re on diabetes medication, talk to your doctor before adding large amounts of cloves to your routine, as they may enhance the medication’s effects.

5.  Powerful Antimicrobial Properties

Cloves are a natural germ-fighter. Their essential oil has been shown to be effective against a wide range of harmful microorganisms, including:

• E. coli
• Staphylococcus aureus
• Candida albicans (a common fungal infection)
• Listeria monocytogenes

This is why cloves have historically been used as a food preservative. The antimicrobial compounds disrupt the cell membranes of pathogens, essentially stopping them from reproducing.

In the food industry, clove extract is being studied as a natural preservative to extend shelf life without synthetic chemicals.

6.  Promotes Healthy Digestion

Cloves have long been used in Ayurvedic and traditional Chinese medicine to treat digestive complaints — and science backs this up.

Here’s how cloves support your gut:

• Stimulate digestive enzymes, improving the breakdown of food
• Reduce gas and bloating by relaxing the smooth muscles of the GI tract
• Fight H. pylori, the bacteria responsible for most stomach ulcers
• Reduce nausea, making clove tea a gentle remedy for upset stomachs

Chewing on a whole clove after meals is a traditional practice in many South Asian cultures — and it’s actually a pretty smart habit.

7. May Protect Brain Health

Emerging research suggests that eugenol in cloves may have neuroprotective properties. Studies in animal models have shown that eugenol can:

• Reduce oxidative stress in brain tissue
• Inhibit the formation of amyloid plaques (linked to Alzheimer’s disease)
• Improve memory and learning performance

While we’re still waiting on robust human clinical trials, the preliminary findings are exciting. The antioxidant and anti-inflammatory properties of cloves likely play a major role in protecting neurons from damage over time.

8. Supports Bone Health

Here’s a benefit that often flies under the radar: cloves are an excellent source of manganese, a mineral that is essential for bone formation and the activity of enzymes involved in bone metabolism.

Just one teaspoon of ground cloves provides about 30% of your daily recommended manganese intake. Manganese works alongside calcium and vitamin D to maintain bone density and reduce the risk of osteoporosis.

Eugenol has also been studied for its potential to preserve bone density and support the activity of osteoblasts (the cells that build bone).

9.  May Benefit Heart Health

Several components of cloves contribute to cardiovascular wellness:

• Eugenol acts as a natural blood thinner, which may reduce the risk of clots
• Antioxidants protect LDL cholesterol from oxidation (a key step in plaque formation)
• Beta-caryophyllene may help lower blood pressure

One study found that eugenol significantly reduced total cholesterol and LDL levels in animal models. While human data is still limited, the heart-protective potential of cloves fits well within a broader heart-healthy diet.

⚠️ Important: Because cloves have mild blood-thinning effects, people on anticoagulant medications like warfarin should use caution and consult their doctor.

10. Contains Cloves’ Natural Liver-Protective Compounds

The liver is your body’s primary detox organ, and cloves may help keep it functioning well. Eugenol has demonstrated hepatoprotective (liver-protecting) effects in multiple studies.

Research has shown that eugenol can:

• Reduce liver inflammation
• Decrease oxidative stress in liver tissue
• Protect against fatty liver disease (NAFLD)
• Lower liver enzyme levels indicate damage

One animal study found that clove extract reduced liver fibrosis — the scarring that leads to cirrhosis — significantly compared to controls.

11. Boosts Immune Function

Cloves are packed with vitamins C and K, manganese, and a range of antioxidants that collectively support a healthy immune system.

Vitamin C stimulates the production of white blood cells, your body’s primary infection fighters. Meanwhile, the antimicrobial properties of eugenol give your immune system a helping hand by directly attacking pathogens before they can take hold.

Drinking clove tea during cold and flu season is a time-honored remedy in many cultures — and there’s real science behind why it might help.

12. Acts as a Natural Expectorant

Cloves have traditionally been used to treat respiratory conditions like coughs, bronchitis, and asthma. The warming, aromatic compounds in cloves help:

• Loosen mucus in the airways
• Soothe irritated throat tissue
• Reduce bronchial spasms
• Provide mild antimicrobial protection in the respiratory tract

Clove-infused steam inhalation is a popular home remedy for chest congestion, and clove tea with honey is a soothing option for sore throats and dry coughs.

13. May Have Anti-Cancer Properties

This is one of the most exciting — and most carefully studied — areas of clove research. Several compounds in cloves, particularly eugenol and oleanolic acid, have shown anti-tumor activity in laboratory studies.

Research has found that clove extracts can:

• Induce apoptosis (programmed cell death) in cancer cells
• Inhibit tumor growth in breast, colon, and ovarian cancer cell lines
• Reduce the spread (metastasis) of cancer cells in vitro

⚠️ Critical caveat: These are mostly lab studies and animal models. Cloves are not a cancer treatment or cure. Always follow your oncologist’s recommendations. This research is promising but preliminary.

14. Provides Natural Pain Relief

Beyond toothaches, cloves act as a broader natural analgesic. Eugenol blocks pain signals by inhibiting certain ion channels in nerve cells — a mechanism similar to how some local anesthetics work.

Clove oil has been used topically for:

• Muscle aches and joint pain
• Headaches (applied to the temples)
• Minor skin irritations and insect bites
• Arthritis-related discomfort

A 2006 study published in the Journal of Dentistry found that a homemade clove gel was as effective as benzocaine gel for reducing needle-insertion pain — a finding that speaks to cloves’ real analgesic power.

15. May Support Weight Management

Cloves may offer modest support for people working toward a healthy weight. Here’s how:

• Boost metabolism: Eugenol may increase thermogenesis (heat production), helping the body burn more calories
• Regulate blood sugar: Stable blood sugar reduces cravings and overeating
• Improve insulin sensitivity: Better insulin function supports healthy fat metabolism
• Aid digestion: Efficient digestion reduces bloating and supports gut health

Cloves won’t replace a balanced diet and exercise, but as part of a healthy lifestyle, they can be a valuable supporting player.

16. May Improve Sleep Quality

Last but not least — cloves may help you sleep better. This benefit is less studied than others, but there’s a reasonable mechanism behind it.

Eugenol has demonstrated mild sedative properties in animal studies, reducing anxiety and promoting relaxation. Cloves also contain magnesium (in small amounts), which is well-known for supporting sleep quality.

A warm cup of clove tea before bed, perhaps combined with chamomile or warm milk, is a traditional sleep remedy in several cultures. The warming, calming effect of the spice may help signal to your body that it’s time to wind down.

Potential Side Effects and Precautions

While cloves offer numerous health benefits, it’s important to be aware of potential side effects and situations where caution is warranted.

Common Side Effects

Who Should Be Cautious?

1. Pregnant and Breastfeeding Women
   While culinary amounts of cloves are generally safe, medicinal doses or concentrated clove oil should be avoided during pregnancy and breastfeeding due to insufficient safety data.
2. People on Blood-Thinning Medications
   Cloves contain compounds that may enhance the effect of anticoagulants like warfarin, potentially increasing bleeding risk. Consult your doctor if you’re on these medications.
3. Individuals with Bleeding Disorders
   Due to their mild anticoagulant effects, cloves should be used with caution by those with bleeding disorders.
4. People on Diabetes Medications
   Since cloves may lower blood sugar, combining them with diabetes medications could potentially cause hypoglycemia (dangerously low blood sugar).
5. Children
   Concentrated clove preparations and essential oils should not be given to children without medical supervision.

⚠️ Important: Always talk to your healthcare provider before using cloves medicinally if you’re pregnant, nursing, on medications, or managing a chronic health condition.

How to Use Cloves at Home?

Cloves are versatile in both culinary and medicinal applications. Here’s how to incorporate them into your routine:

1. Culinary Uses

Cloves add depth and complexity to a wide range of dishes:

Whole Cloves:

• Stud onions or fruits for flavorful infusions in stocks, broths, and mulled beverages
• Add to rice dishes (like biryani) or braised meat recipes
• Include in spice sachets or bouquet garni for soups and stews
• Use as a garnish for ham and other roasted meats

Ground Cloves:

• Add to baked goods like gingerbread, pumpkin pie, and spice cakes
• Include in spice blends like garam masala, Chinese five spice, and allspice
• Sprinkle into warm beverages like chai, hot chocolate, or mulled wine
• Mix into glazes for roasted vegetables or meats

Pro Tip: A little goes a long way with cloves—start with a small amount (⅛ to ¼ teaspoon for most recipes) and adjust to taste.

2. Clove Tea

Clove tea offers a simple way to enjoy many of the medicinal benefits:

Ingredients:

• 1 cup water
• 5-7 whole cloves (or ½ teaspoon ground cloves)
• Optional: Honey, cinnamon stick, lemon slice, or orange peel for flavor

Instructions:

1. Bring water to a boil in a small pot.
2. Add cloves and any additional spices.
3. Reduce the heat, cover, and simmer for 5-10 minutes.
4. Strain into a mug and sweeten if desired.
5. Enjoy 1-2 cups daily, especially during cold and flu season.

3. Clove Oil for Oral Health

For temporary tooth pain relief or oral hygiene:

Method 1 (Temporary Pain Relief):

• Place 1-2 drops of diluted clove oil on a cotton ball.
• Apply to the affected area for up to 5-10 minutes.
• Do not swallow and rinse your mouth afterward.

Method 2 (Mouth Rinse):

• Add 3-5 drops of food-grade clove oil to 8 oz of warm water.
• Swish in mouth for 30 seconds and spit out.
• Use once daily as part of your oral hygiene routine.

⚠️ Important: Clove oil is highly concentrated and can irritate if used undiluted. Always dilute clove oil with a carrier oil (like coconut or olive oil) at a ratio of at least 1:4 before topical use.

4. Aromatherapy and Household Uses

Diffuser Blend:

• Add 3-4 drops of clove essential oil to your diffuser.
• Combine with orange, cinnamon, or rosemary oil for a warming blend.
• Diffuse for 30 minutes to purify the air and create a cozy atmosphere.

Natural Insect Repellent:

• Place whole cloves in muslin bags in closets or drawers to deter moths.
• Add 10 drops of clove oil to 2 cups of water in a spray bottle for a natural insect repellent.

How Much Clove Should You Use?

• Ground cloves: ¼ to ½ teaspoon per day is generally safe and effective
• Whole cloves: 2–4 cloves per day
• Clove essential oil: Use with caution — always dilute before topical use and never ingest undiluted oil

Best Time to Use Cloves

Since cloves are non-stimulant (unlike caffeine), you can enjoy them throughout the day:

• Morning: Clove tea can be a warming, aromatic start to your day
• After Meals: A few cloves chewed after eating may aid digestion and freshen breath
• Evening: The warming properties make clove-infused beverages comforting before bed

Cloves vs. Other Spices: How Do They Compare?

FAQs

1. Is clove the same as clove of garlic?

No, they are completely different plants. Cloves are dried flower buds from the Syzygium aromaticum tree, while a “clove” of garlic refers to an individual segment of a garlic bulb. They have different flavors, properties, and uses in cooking.

2. Can children use cloves or clove oil?

Children can consume foods containing culinary amounts of cloves. However, clove oil or concentrated preparations should not be given to children without medical supervision, as they can be too strong and potentially cause adverse reactions.

3. Does clove contain caffeine?

No, cloves do not contain caffeine, making them suitable for evening consumption or for those avoiding caffeine.

4. How long do cloves last in storage?

Properly stored in an airtight container in a cool, dark place, whole cloves can retain their potency for 3-4 years. Ground cloves begin losing their flavor after about 1 year. For maximum potency and flavor, it’s best to grind whole cloves as needed.

5. What does clove taste like?

Cloves have an intensely aromatic, warm, and slightly sweet flavor with a hint of bitterness. The taste is quite powerful and can be described as pungent, with notes of pepper and a numbing effect on the tongue when chewed whole.

6. Are cloves safe to eat every day?

Yes, consuming small amounts of cloves (culinary amounts) daily is generally safe for most people. If you’re considering larger medicinal doses, consult with a healthcare provider, especially if you have underlying health conditions or take medications.

7. Can cloves help with weight loss?

While not a miracle weight loss solution, cloves may support weight management efforts. They help regulate blood sugar, improve metabolism, and aid digestion. Some research suggests that the compounds in cloves may help reduce fat accumulation, but they should be viewed as part of an overall healthy diet and lifestyle.

8. Can clove oil be applied directly to skin?

No, clove essential oil is highly concentrated and should always be diluted with a carrier oil (such as coconut, olive, or jojoba oil) before applying to skin. A safe dilution is typically 1-2% (1-2 drops of clove oil per teaspoon of carrier oil). Even when diluted, it’s wise to perform a patch test first to check for sensitivity.