Their fruits are oval in shape with light green or
yellow skin and contain edible seeds. What’s more,
guava leaves are used as an herbal tea and the leaf
extract as a supplement.

Guava fruits are amazingly rich in antioxidants,
vitamin C, potassium, and fiber. This remarkable
nutrient content gives them many health benefits.
Here are 8 evidence-based health benefits of guava
fruits and leaves.

1. May Help Lower Blood Sugar
Levels

Some evidence suggests that guava can improve
blood sugar control.

Several test-tube and animal studies found that
guava leaf extract improved blood sugar levels,
long-term blood sugar control, and insulin
resistance.

This is good news for people with diabetes or
those at risk.

A few studies involving humans have also shown
impressive results.

One study in 19 people noted that drinking guava
leaf tea lowered blood sugar levels after a meal.
The effects lasted up to two hours.
Another study in 20 people with type 2 diabetes
found that drinking guava leaf tea reduced blood
sugar levels after a meal by more than 10% ( 3).

SUMMARY
Guava extract may help improve blood
sugar control in people with diabetes or
those at risk.

2. May Boost Heart Health

Guavas may help boost heart health in a number of
ways.

Many scientists believe that the high levels of
antioxidants and vitamins in guava leaves may help
protect your heart from damage by free radicals.
The higher levels of potassium and soluble fiber in
guavas are also thought to contribute to improved
heart health.

Additionally, guava leaf extract has been linked to
lower blood pressure, a decrease in "bad" LDL
cholesterol, and a rise in "good" HDL cholesterol

Since high blood pressure and high levels of LDL
cholesterol are linked to higher risks of heart
disease and stroke, taking guava leaf extract could
lead to valuable benefits.

What’s more, the fruit may have benefits for heart
health as well.

A 12-week study in 120 people found that eating
ripe guava before meals caused an overall decrease
in blood pressure by 8–9 points, a reduction in
total cholesterol by 9.9%, and an increase in "good"
HDL cholesterol by 8% ( 8).
This same effect has been seen in several other
studies.

SUMMARY
Guava fruit or leaf extract may have a
positive effect on heart health by lowering
blood pressure, decreasing bad
cholesterol, and increasing good
cholesterol.


3. May Help Relieve Painful
Symptoms of Menstruation

Many women experience dysmenorrhea — painful
symptoms of menstruation, such as stomach
cramps.

However, there is some evidence that guava leaf
extract may reduce the pain intensity of menstrual
cramps.

A study in 197 women who experienced painful
symptoms found that taking 6 mg of guava leaf
extract daily resulted in reduced pain intensity. It
appeared to be even more powerful than some
painkillers.

Guava leaf extract is also thought to help relieve
uterine cramps.

SUMMARY
Taking guava leaf extract daily may help
decrease symptoms of painful
menstruation, including cramps.

4. May Benefit Your Digestive
System

Guavas are an excellent source of dietary fiber.
Therefore, eating more guavas may aid healthy
bowel movements and prevent constipation.
Just one guava can provide 12% of your
recommended daily intake of fiber.

Additionally, guava leaf extract may benefit
digestive health. Studies suggest that it may reduce
the intensity and duration of diarrhea.

Several studies have also shown that guava leaf
extract is antimicrobial. This means that it can
neutralize harmful microbes in your gut that can
cause diarrhea.

SUMMARY
Consuming guavas or guava leaf extract
may prevent or reduce diarrhea and
constipation.

5. May Aid Weight Loss

Guavas are a weight-loss-friendly food .
With only 37 calories in one fruit and 12% of your
recommended daily fiber intake, they are a filling,
low-calorie snack.

Unlike some other low-calorie snacks, they are
packed with vitamins and minerals — so you aren't
losing out on important nutrients.

SUMMARY
Guavas are full of fiber and low in calories,
meaning that they may help you feel full
and aid weight loss.

6. May Have an Anticancer Effect

Guava leaf extract has been shown to have an
anticancer effect. Test-tube and animal studies
show that guava extract can prevent and even stop
the growth of cancer cells.

This is likely due to the high levels of powerful
antioxidants that prevent free radicals from
damaging cells, one of the main causes of cancer.
One test-tube study found that guava leaf oil was
four times more effective at stopping cancer cell
growth than certain cancer drugs.

Although the results of test-tube experiments are
promising, it doesn’t mean that guava leaf extract
helps treat cancer in people. Further studies are
needed before any claims can be made.

SUMMARY
The high levels of antioxidants in guava
may help prevent the development and
growth of cancer cells.

7. May Help Boost Your Immunity

Low levels of vitamin C are linked to an increased
risk of infections and illness.

Guavas are a fantastic way to get this nutrient, as
they're one of the richest food sources of vitamin C .
In fact, one guava provides about double the
Reference Daily Intake (RDI) for vitamin C. This is
almost twice the amount you would get from eating
an orange.

Vitamin C plays an important role in maintaining a
healthy immune system.

Although it's not proven to prevent the common
cold, vitamin C has been shown to reduce a cold’s
duration.

It’s also linked to antimicrobial benefits. This
means that it helps kill off bad bacteria and viruses
that can lead to infections.

Because vitamin C can easily be flushed out of your
body, it's important to regularly get enough through
your diet.

SUMMARY
Guavas are one of the richest food sources
of vitamin C. Maintaining adequate levels
of this vitamin is important for protecting
against illness and infections.

8. Eating Guavas May Be Good for
Your Skin

The wide range of vitamins and antioxidants packed
into a guava may work wonders for your skin . Its
antioxidants may protect your skin from damage,
which can slow down its aging process, helping
prevent wrinkles.

What's more, guava leaf extract may even help treat
acne when applied directly to your skin.
One test-tube study found that guava leaf extract
was effective at killing acne-causing bacteria —
likely due to its antimicrobial and anti-inflammatory
properties.

More studies are needed to confirm the role of
guavas and guava extract in maintaining healthy
skin.

SUMMARY
The antioxidants and vitamins in guavas
can help slow down the aging of your skin,
while guava leaf extract may help treat
acne.

The Bottom Line

 Guavas are incredibly delicious and packed with
nutrients.

This tropical fruit is low in calories, loaded with
fiber, and an excellent addition to a healthy diet.
Many studies also support the benefits of guava
leaf extracts, which are taken as dietary
supplements.

Together, guava fruit and leaf extracts may boost
your heart health, digestion, and immune system, in
addition to other benefits.