15 Benefits of guava leaves and side effects

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Discover the 15 health benefits of guava leaves and side effects.

Guava is a famous tropical fruit with an interesting taste and high nutrient content.

The fruit comes from a small evergreen tree in the Myrtaceae family that grows well in tropical countries.

Today, the tree that originally came from Central America is widely cultivated in many parts of the world in many of its varieties.

While many people around the world consume fruit as food, not many people understand that the fruit is not the only part of the plant that is high in nutrients and that it can also gain great benefits from guava leaves.

It is not only the fruits that are the edible parts of the tree, but also the leaves.


For a long time, people have been using leaves as a traditional remedy against many common illnesses.

Some people simply crush the leaves and mix them with water before drinking, some chew the leaves and swallow them, but probably the most popular method is to boil the leaves in tea form and apply the crushed leaves topically.

In countries like Mexico and some parts of South America, making guava leaves to make tea is quite common.

Health benefits of guava leaves

Below are the 15 shocking health benefits of guava leaves;

1.- Improves intestinal health

Guava leaves are the most popular for their potential to treat diarrhea.

This is due to the natural phytochemicals in guava leaves, especially anthocyanins and carotenoids which are antioxidants and flavonoids.


These compounds have natural antibacterial, antiviral, and antiparasitic properties.

Like antibiotic medications, these compounds help the body by killing harmful pathogens that cause diarrhea.

The effectiveness of guava leaves for treating diarrhea has been known for centuries by people who use guava leaf tea as a common folk remedy.

However, in 2008, a research report was published, in the study, scientists wanted to examine how effective guava leaves were in treating the bacteria that cause diarrhea.

The scientists concluded that human subjects who received treatment in the form of guava leaf extract experienced faster recovery from diarrhea compared to others who did not.

2.- Improves cardiovascular health

A healthy cardiovascular system is a driver of a healthy life.


Cardiovascular disease, such as heart attack, is the leading cause of death in demographics around the world.

Fortunately, it is possible to reduce your risk of developing cardiovascular disease by making a lifestyle change.

Taking guava tea leaves regularly can also help your quest to maintain a healthy heart.

According to some clinical studies and laboratory studies, drinking guava leaf tea is good for the cardiovascular and circulatory systems.

In the 2005 publication “Methods and Results in Experimental and Clinical Pharmacology,” a study was written on the effect of guava leaf tea on cardiovascular health.

The study used laboratory animals as test subjects.


The animals had high blood pressure at the beginning of the study.

After feeding the animal’s guava leaf extract, the researchers measured the animals’ heart rate and blood pressure and compared them to a control group.

The researchers witnessed a reduction in both markers, showing that the leaf extract is effective in reducing symptoms of cardiovascular ailments such as hypertension.

3.- Guava leaves lower cholesterol

In addition to lowering blood pressure levels, guava leaf tea can also help with unregulated cholesterol levels.

High-level cholesterols contribute as the risk factor for many serious diseases, such as heart attack, stroke, and arteriosclerosis.

This is because guava leaf tea can improve blood lipid levels.


A study published in the 2010 “Nutrition and Metabolism” paper investigated this.

According to the study, human subjects who received the guava leaf extract treatment lowered their blood cholesterol levels.

There was also a reduction in the number of triglycerides, although the scientists claimed that more studies and experiments were needed on the subject.

4.- Benefits of guava leaves for diabetes

Are you prone to diabetes due to multiple risk factors that you cannot avoid? You should avoid foods that are high in sugar or carbohydrates to suppress the risks.

However, in times when it is simply not possible, you can drink guava leaf tea as the flavonoids and some other compounds present in the tea will stabilize your blood sugar level even after consuming carbohydrate-rich foods.

The study published in the journal Nutrition and Metabolisms reviewed several studies that discovered and investigated how guava leaf tea helps people with diabetes stabilize their blood sugar level.


Some substances in tea inhibit the enzymes that convert carbohydrates into glucose.

Since carbohydrates in the digestive tract are not converted to glucose, the level of sugar in the blood does not rise.

The review also reported on some trials that were conducted in Japan to assess the possible antidiabetic properties of guava leaf tea.

The result showed that regular tea consumption helped lower blood glucose levels after eating high carbohydrate foods.

5.- Benefits of guava leaves for weight loss

Losing weight is the goal of many people, especially those who are obese.

It is not only a question of aesthetics but also health problems.


Unfortunately, some people are obese due to a metabolism problem, as their body does not correctly metabolize calories.

Drinking guava leaf tea may be the solution.

The leaves are high in fiber but low in the glycemic index, making them effective as a weight loss supplement.

It is done by preventing starches from turning into sugars.

Sugar is worse than complex starches because typically it is metabolized by the liver into fat rather than used for energy.

When complex starches are not converted to sugar, your weight loss program will work more effectively.


The leaf does not have to be chewed directly to reap the benefits, the extract and tea can simply provide the same result

 health benefits of guava leaves


6.- Guava leaves for gastric cancer

Guava leaf extract is very powerful and maybe what the medical world needs to treat stomach cancer patients.

The health benefits of guava leaves contain antitumor and anticancer properties because they are high in good substances like lycopene and quercetin.

Furthermore, guava leaves are also rich in vitamin C, which is a very powerful antioxidant that can prevent and neutralize the damage caused by free radicals in the body.

According to a study published in the 2011 issue of “Food Chemistry,” consuming guava leaf extract will cause apoptosis or a situation where gastric cancer cells simply attack each other.


Cancer cells will gradually die and patients can easily recover from it.

Guava leaf tea is effective in treating many types of cancer, including breast, oral, and prostate cancer.

However, patients should not only take the herbal treatment without following medical procedures to get rid of it.

7.- Preserve oral health

Dental problems can be very expensive to treat. One of the most common dental problems is plaque that can be difficult to avoid even if you brush your teeth regularly every day.

Guava leaves have some antiplaque properties that can be effective in preventing this oral problem.

Herbal remedy enthusiasts recommend crushing and turning guava leaves into a paste as a treatment to treat and prevent plaque.


The anti-inflammatory and antimicrobial properties will also reduce bacterial infection in the gums and mouth.

In addition to avoiding plaque, oral ulcers, and gum inflammation, you can consistently have clean, fresh breath.

In addition to using the leaves as toothpaste, you can also simply chew on the leaves or make a mouthwash at home by boiling some leaves in the water.

8.- Boost the immune system

The benefits of guava leaves are rich in vitamin C, which makes them perfect to fight various diseases by improving the immune system.


You must have a strong immune system.

If you want to have a strong defense against bacteria, viruses, and other microbes that can cause many diseases.


The vitamin helps the immune system by attacking the nucleic acid of the virus until the virus is destroyed.

Vitamin C is one of the strongest antioxidants that fight free radicals, too.

When free radicals are neutralized from your system, your body’s immune system will be better equipped to defend itself against microbial infections.

9.- Decreases the risk of prostate tumor

In addition to gastric cancer, the antitumor and anticancer properties of guava leaves may also work to fight other types of cancer, including prostate cancer.

This benefit is due to the combination of different antioxidants and compounds with anticancer properties such as quercetin, vitamin C, lycopene, and various polyphenols. These compounds neutralize the free radicals that are the cause of cancer.

One study found that guava leaf extract can reduce the risk of prostate cancer in men. Regular intake of guava leaf tea is recommended for this.


10.- Benefits of guava leaves for eyes

Guava leaves contain vitamin A, which is very important for good eyesight.

Vitamin A protects the cells of the eyes, strengthens the muscle, and cleanses the cornea.

As a result, your vision will be sharper and healthier.

Furthermore, it can also prevent night blindness as the disease occurs due to vitamin A deficiency.

In addition to vitamin A, the vitamin C in guava leaves also promotes better retinal cell function and supports capillary function.

Consuming the leaf tea regularly will help you prevent the development of macular degeneration and cataracts, which are common vision problems that occur among older people.


11.- guava leaves treat dengue fever

In some tropical countries, guava leaves are very helpful in treating dengue fever, which can be a common contagious disease based on the season.

The use of guava leaves to improve the condition of dengue patients is due to its ability to improve the number of platelets in the blood.

Also, it is done in a safe and non-toxic way.

Additionally, guava leaves also contain antioxidants that can enhance the immune system and help the body eliminate parasites from the system.

The abundant amount of vitamin C also helps speed healing.

12.- treat acne and pimples

Skin problems like acne and black or whiteheads can be very annoying because they can ruin your appearance.


Layers of makeup should be put on your skin if you want to look flawless while your skin is under attack from acne.

Fortunately, treating acne and blackheads can be done simply and affordably.

Just use crushed guava leaves as a face mask regularly or apply topically to your acne.

The antioxidant, antibacterial, and anti-inflammatory properties will soothe acne, clear clogged pores, and ease allergic reactions.

Your skin will be free from acne and blackheads when you do it regularly.


13.- Benefits of guava leaves for skin

The antioxidant properties of guava leaves also mean that they can be your best ally in stopping aging.

Antioxidants scavenge free radicals that are responsible for aging symptoms such as dark spots, wrinkles, fine lines, and sagging skin.

Drinking guava leaf tea every day will preserve the elasticity of your skin and improve the tone.

You can also use a guava leaf mask to tighten your skin.

14.- Benefits of guava leaves for fertility

Guava leaves can also improve fertility among men by increasing sperm count.

According to a recent study by researchers, guava leaf extract contains properties that can stimulate sperm production.


The study used Wistar rats as test subjects.

Those who received the guava leaf extract experienced a significant improvement in sperm count compared to the other control groups.

Although more studies are needed in human subjects, this showed a very promising benefit.

15.- Stimulates cognitive functions

Drinking guava leaf tea regularly can also maintain brain health and cognitive functions.

Your focus will sharpen and your attention span may be prolonged.

The leaves are rich in vitamin B3 and B6 that stimulate blood circulation in the brain area, improving alertness, memories, and mood.


Vitamin C and other antioxidants provide nutrition to the brain and stimulate its mental functions.

Furthermore, potassium also aids electrical conductivity between neurons in the brain, which is vital for your memory capacity.

How to make guava leaf tea

•Fresh guava leaves
•½ teaspoon normal tea leaves
•1 ½ cup of water


•Take 10 fresh guava leaves and wash the leaves entirely with tap water.

•Take a saucepan, pour 1 ½ cup of water and allow it boil on a medium flame for 2 minutes.


•Then add washed guava leaves and let it boil for 5-minutes.

•Add ½ teaspoon natural tea leaves for colour and flavour.

•Boil for another 10 minutes and pour the water and filter to reduce any piece of leaf.

•Lastly, add honey or jaggery as sweeteners.

Side effects of guava leaves

There is not sufficient data to know if guava is safe when used as a medicine.

Guava leaf extract might induce temporary nausea or stomach pain in some people.


Precautions and Warnings

Pregnancy and breast-feeding: Guava is LIKELY SAFE when eaten as food.

There isn’t enough credible evidence to realize if guava is safe to use as medicine when pregnant or breast-feeding.

Stay on the safe side and grip with food amounts until more is known.

Eczema: Guava leaf might make  eczema worse.

Guava leaf extract comprises chemicals that can cause skin irritation, especially in people with skin situations like eczema.

If you have eczema, use guava leaf extract with vigilance.


Diabetes: Guava might lower blood sugar. If you have diabetes and use guava, review your blood sugar carefully.

Surgery: Guava might lower blood sugar. In theory, guava might enhance the risk for bleeding or interfere with blood sugar control during and after surgical protocols.

Stop using guava as a medicine at least 2 weeks before a scheduled surgery

Other names

Amrood, Amrut Phala, Araçá-Goiaba, Araçá-Guaçú, Banjiro, Brazilian Guava, Brazilian Red Guava, Common Guava, Fan Shi Liu, Feuille de Goyavier, Goiaba, Goiabeiro, Goyabe, Goyave, Goyave Jaune, Goyave Rouge, Goyavier, Goyavier du Brésil, Guaiaba, Guaiava, Guajava, Guava Leaf, Guava Leaves, Guava Peel, Guava Pulp, Guava Seed, Guava Seed Protein, Guavas, Guave, Guavenbaum, Guayaba, Guayabo, Guayave, Gwaaba, Jambu Batu, Koejawel, Lemon Guava, Mansala, Pépin de Goyave, Psidium, Psidium guajava, Pulpe de Goyave, Red Guava, Yellow Guava.

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