Health Benefits of a guava fruit

Guavas are rich in dietary fiber and vitamin C, with moderate levels of folic acid and other antioxidants, such as beta carotene and lycopene.

Health Benefits of a guava fruit


Guavas are rich in dietary fiber and vitamin C, with moderate levels of folic acid and other antioxidants, such as beta carotene and lycopene, as well as iron, B vitamins, potassium, zinc, and phosphorus. (Antioxidants slow down or stop the harmful effects of oxidation. Oxidation is a chemical reaction in which oxygen is added to a chemical element or compound). Low in calories per typical serving, and with few essential nutrients, a single common guava fruit contains 257% of the Daily Value (DV) for vitamin C.

Guava LEAVES also contain chemicals with antioxidant and other effects.



Guava leaves contain both carotenoids and polyphenols [like (+)-gallocatechin and leucocyanidin]. As some of these phytochemicals produce the fruit skin and flesh color, guavas that are red-orange tend to have more polyphenol and carotenoid content than yellow-green ones.

This synergy of nutrients can contribute to lifelong health and protection from disease. Supplements cannot provide the abundance of protective nutrients all wrapped up in a sweet and low-calorie treat quite like guava.



% Daily Value


68 kcal



5.4 g



417 mg



0.23 mg


Vitamin C

228 mg



49 mg


Vitamin A

31 µg


Beta carotene

374 µg -



5204 µg          


Health Benefits of Guava

Oral Health

guava helps maintain oral health. The standard mouthwash used to treat and prevent gingivitis often contains a disinfectant called chlorhexidine.

Guava leaves have been shown to help fight bacteria, inflammation, and plaque.

A recent study found that daily use of a 0.15% guava leaf extract-based mouthwash was as effective as a standard mouthwash in reducing bacteria, redness, and swelling in patients with severe gingivitis.


Diabetes Management

The glycemic index is a tool that estimates a food’s effect on blood sugar. Foods that are high on the glycemic index cause blood sugars to spike and must be eaten less often and in smaller portion sizes.

Fruits tend to be high on the glycemic index. Many people with diabetes avoid fruits in general because of their effect on blood sugar. This is unfortunate because fruits contain vitamins and minerals that are essential for optimal health.

Fiber slows the absorption of sugar in the intestines and helps keep blood sugar levels from spiking. Due to its high fiber content, guava is low on the glycemic index and can keep blood sugar stable.

Guava is a healthy fruit that can be included in the diet of people with diabetes while maintaining blood sugar control.

However, portion size and the preparation method can influence the effect guava will have on blood sugar. The guava peel tends to elevate blood sugars more than the inner flesh. Diabetics should remove the guava peel before consumption for better blood sugar control.


Other Potential Benefits


In South Africa, guava leaves are traditionally used to treat diarrhea.

Animal studies show that guava leaf extract may reduce the number of watery stools and abdominal pain.

The antibacterial properties of guava could cleanse the gut of the harmful organisms causing diarrhea.



Free radicals play a role in the development of osteoarthritis. Some research in animals suggests that the antioxidants in guava can reduce cartilage destruction.



As vaccine-resistant flu strains are emerging, researchers are looking for alternative methods to fight these super-viruses.

The flavanols in guava tea are natural antioxidants that have antiviral effects. Unlike most vaccines, they act on a broad spectrum of viruses and could be used to fight the myriad of emerging flu strains.



Free radicals are also responsible for cell damage that contributes to cancer. The antioxidants in guava could help prevent cancer and tumor development.



Lycopene is a carotenoid that gives fruits and vegetables their red color.

The pink-colored guava fruit contains lycopene, which is associated with reduced risk of cardiovascular disease. There is some evidence that consuming guava fruit and juice without the peel can reduce blood pressure and improve cholesterol.



Guava seed oil is high in antioxidants and linoleic acid, an unsaturated fat. Linoleic acid is known to play a role in wound healing and blood vessel formation.

A recent study found that guava seed oil promoted wound healing by increasing the migration of skin cells.



The antioxidants in guava may protect the sperm from natural toxins.

In one study, the rats given guava leaf extract had significantly increased sperm counts compared with the rats given placebo after exposure to the natural toxin gossypol.

This result suggested that guava leaves have the potential to protect male fertility when exposed to natural toxins.



Folate is a vitamin that plays a role in the growth of new cells. During the first trimester of pregnancy, critical neural development occurs.

Mothers must have adequate folate before conception and during early pregnancy to prevent spina bifida, the result of an improperly formed spinal cord.

Women who plan to become pregnant should have 400-800 mg of folate per day. Guava is a good source of folate and can contribute to a woman’s overall intake.

All the best


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Haydn Amboga