Medicinal plant used mainly in prevention or as a disinfectant of the urinary tract, in case of repetitive cystitis, it is often presented in the form of juice.


Portuguese name: cranberry, cranberry, cranberry
Binomial name: Vaccinum macrocarpon
French name: Canneberge , cranberry , airelle des marais, airelle à gros fruit, atoca, atoka
English name: cranberry
German name: Cranberry
Italian name: cranberry


Ericaceae (Ericaceae)


Anthocyanins (proanthocyanins), flavonoids, tannins.

parts used


cranberry effects

Urinary tract disinfectant (by depositing a protective biofilm on the walls of the urinary system) astringent, antiviral.

cranberry indications

Urinary infections such as cystitis , especially in the case of repetitive cystitis, the effect is preventive. Prevention of intestinal infections (viral type). Prevention of cavities (thanks to the deposit of a biofilm). The cranberry is considered capable of reducing bad cholesterol (LDL)

Secundary effects

we do not know


we do not know


A person who drank several liters of cranberry juice a day and took warfarin (a medicine, or more precisely a molecule used to thin the blood) was the victim of problems related to coagulation (bleeding). In fact, a high dose of cranberry has the role of enzyme inhibitor and increases the concentration of certain drugs (such as warfarin). Ask your pharmacist or doctor for advice if you are a user of this type of medicine. This case, however, remains rare and it is important to point out that this person in question drank a lot of cranberry juice every day.


– Juice

– Capsule

– poultice

Where does the cranberry grow?

The cranberry is mainly found in North America. She would be originally from Northeastern North America.
Currently, a large part of the world production of the fruit comes from its cultivation in industrial agricultural units located mainly in North America (United States and Canada).

Pictured below: Harvesting blueberries in the Fraser Valley, British Columbia (Vancouver region), Canada.

Harvesting the fruit
Blueberries float on water as they contain air pockets.
For harvesting, growers flood the crops with a thin layer of water. To loosen the berries of the blueberry plant and make them rise to the surface, growers use a special machine. When they reach the surface, all the fruits can be gathered together, as shown in the photo below. These fruits harvested with water are mainly used to produce juice and medicines (eg capsules). A small part of the production is also harvested directly from the plant, using machines and without the use of water (flooding), in order to obtain fresh fruit.
The blueberry plant is a small shrub that reaches a height of between 15 and 20 cm.

When to harvest the cranberry?

In North America, blueberry berries are harvested in late autumn.


– North American natives used blueberries as food and also because of their medicinal properties, especially in the form of a poultice, for example, in case of injuries.

– The supposed effect (read below) of bilberry in curing cystitis dates back to the late 19th century (late 1800s).

A study carried out by Yale University in the United States and published in October 2016 in the specialized journal JAMA, showed that the intake of 2 cranberry capsules (each containing 36 mg of the active ingredient: proanthocyanidin) per day by elderly women living in houses at rest, had no significant effect on the incidence of cystitis . The researchers compared the effects of the cranberry with a placebo. More than 180 women with an average age of 86 years participated in this study.

Jeanne Kenney
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I’m a stylist trainer, a content creator, and an entrepreneur passion. Virgo sign and Pisces ascendant, I move easily between my dreams, the crazy world I want, and my feet on the ground to carry out my projects.

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