The Phaserl


Guava Leaf Tea Fights Cancer, Lowers Cholesterol and Treats Diabetes

by Martin Hajek, Natural News:

You probably heard about Guava which is well known tropical fruit throughout the world. However, have you heard about its leaves which show even more benefits? The young leaves of the guava evergreen tree have been used for ages in traditional medicine in tropical countries for a variety of health conditions. The leaves of guava are even more beneficial than the fruit. In fact, according to research issued in the Journal of Food and Chemistry in 2007, the antioxidant properties of guava leaf extracts may be even greater than those of dried guava fruits.

People in Asian countries steep guava leaves in boiling water and drink the extract as a folk remedy for diabetes. These leaves contain many beneficial substances, including powerful antioxidants like vitamin C and flavonoids such as quercetin. It contains a number of other Phytochemicals such as anthocyanins, carotenoids (especially lycopene), essential oils, fatty acids, flavonoids, phenols, lectins, tannins, saponins and triterpenes, and vitamins.

Drinking a tea made by infusing guava leaves in boiling water may be helpful in treating diarrhea, cold and flu, lowering cholesterol, preventing diabetes, and it even exhibits anti-cancer properties. Herbalists around the world uses this tea to treat everything from diabetes and digestive problems to toothaches, acne, wrinkles, cough, inflammation, arthritis, gout but also to prevent hair loss. Traditional medicine recommends drinking a cup of guava leaf tea daily to develop protection against common colds and the flu.

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And now let’s take a look at top 8 Guava Leaf Tea Health Benefits:


The regular drinking of Guava Leaf Tea with every meal helps pre-diabetic and diabetic patients. Japan has approved guava leaf tea for specified health uses to aid in the treatment and prevention of diabetes. In fact, Japan has conducted several clinical trials that support guava tea’s anti-diabetic properties; drinking the tea frequently helped lower blood glucose (after-eating) in patients with Type 2 diabetes.

Components in the tea hinder the absorption of two types of sugars, maltose, and sucrose, thus helping to control blood sugar levels after eating. Two studies were performed to explain the effects (both published in ‘Nutrition & Metabolism’).

In the first study, the patients drank guava leaf tea after eating white rice. They showed decreases in blood sugar levels that were greater after 30 minutes, 90 minutes and 120 minutes. The same study participants then drank only hot water after eating white rice again and showed no benefits.

There was a second, longer study conducted on patients diagnosed with prediabetes or mild diabetes Type 2. Their regular intake of guava leaf tea for the period of 12 weeks resulted in lower fasting blood-sugar levels than before they began drinking the tea.

Furthermore, A study published in the November 2008 issue of the journal Phytotherapy Research examined the impacts of guava leaf extracts in mice with type 2 diabetes and discovered that the intake of guava leaf extracts resulted in a significant decrease in the rats blood sugar levels. Another study from Taiwan conducted on rodents says that guava leaves intake results in alleviation of hypoglycemia in diabetes, thus recommending it as a potential therapeutic agent for the treatment of diabetes-associated hypoglycemia.


Guava Leaf extracts, but also leaf oil, the seeds, and whole plant extracts have been evaluated for possible chemotherapeutic utilization. It displays activity against different human cancer cell lines including colon, prostate, and epidermal cancers, but also melanoma and leukemia. Specifically, guava leaves are able to inhibit different human carcinoma cell lines.

The leaves are quite high in two compounds, powerful antioxidant lycopene, and flavonoid quercetin. Numerous studies have shown that lycopene represents an important role in lowering the potential risk of cancer. Quercetin has anti-cancer properties as well. Guava leaves, in fact, may lower the risk of cancer; particularly breast, prostate and oral cancer.

In 2010, a human study was carried out by a group of medical scientist to discover the possible health benefits of guava on prostate cancer. The results of the research presented evidence that the size of a tumor in the case of prostate cancer can be in fact decreased through the guava extract.

In addition, a study published in the Journal of Medicinal Food in 2012 confirmed the Anticancer Activity in Human Prostate Cancer Cells.

A Recent study from 2016 demonstrates that guava leaf extracts play a substantial role in fighting cancer, thus once again, confirming its anti-cancer properties.


Guava leaf tea presents strong anti-bacterial activities, and several studies confirm it. Also, traditional medicine uses dried leaves to treat viral infections such as common cold and flu. Furthermore, it helps with a critical condition such as Dengue Virus Infection.

A laboratory research published in the issue of the Journal of Ethnopharmacology in 1999 proclaimed that extracts of dried guava leaves effectively restrained the growth of Staphylococcus aureus; Staph A. is a common cause of skin infections, respiratory diseases, and food poisoning. Actually, 90% of eczema victims are carrying Staph A on their skin. That is why guava leaves are so great for your skin problems as well, but more on this later.

Another study, this time from India, from 2008, came to a similar conclusion – ”Guava leaf extract appears efficient and safe in inhibiting multidrug resistant Staphylococcus aureus.”

A Pediatric Research from 2010 demonstrated that guava leaf extract might be used to treat dengue fever because it has an effect of increasing the thrombocyte and platelet level in blood serum. This makes guava leaves an efficient alternative home remedy to help with dengue fever. Another, even more powerful remedy, proved in studies are the leaves and seeds of papaya. Read more about it here:

Guava is also herbal medicine for controlling epidemics of cholera. International Center for Diarrhoeal Disease Research, in Bangladesh 2010 came to a conclusion that Guava leaf and bark exhibit antibacterial activity against multi-drug resistance Vibrio cholerae, thus confirming its anti-Cholera activity.

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