What is Juniper Berry Extract?

Juniper Berry Extract is an herbal extract made from the berries of Juniperus communis. It is traditionally used for urinary and digestive support and contains antioxidant plant compounds.

What are the main benefits of Juniper Berry Extract?

It is commonly used for antioxidant support, urinary tract and kidney support as a mild diuretic, and antimicrobial activity based on laboratory findings. Effects can vary by extract type and dose.

What is a typical dosage for Juniper Berry Extract?

A common supplemental range is 100–400 mg per day. Follow the product label and consider professional guidance if you have medical conditions.

Who should avoid Juniper Berry Extract?

People who are pregnant or breastfeeding, have kidney disease, or are using diuretic or kidney-affecting medications should avoid or use only with clinician supervision. Stop use if irritation or adverse effects occur.

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Juniper Berry
Extract

Limited research available·3/10

A higher score indicates better study conditions, but not necessarily effectiveness.

Herbal extract from Juniperus communis berries with traditional use for urinary tract health, antioxidant, and antimicrobial support.

Digestion & Gut Health Anti-inflammatory Antioxidant Immune Booster Kidney Health

dose range

100–400 mg

Divided into two daily doses or as 1–2 grams dried berries in tea.

Consumption

Take with meals to enhance absorption and reduce gastrointestinal discomfort.

Not fat-soluble.

Best time

Best taken in the morning or with the first meal of the day.

Description

Juniper Berry Extract is derived from the berries of Juniperus communis, traditionally used in Europe and North America for urinary and digestive health, with evidence supporting antioxidant and antimicrobial effects.

benefits

Main effects with level of evidence

Limited

Note on evidence

Most benefits are supported by animal studies, in vitro data, or traditional use; robust human trials are lacking.

Antioxidant Support

Limited

Juniper berry extract contains polyphenols and flavonoids that help neutralize free radicals and reduce oxidative stress, which may support cellular health.

Particularly relevant for: General Adult Population

1 · PubMed 6 · Examine.com

Urinary Tract & Kidney Support

Limited

Traditionally used as a mild diuretic, juniper berry extract may increase urine output and support urinary tract function without major impact on electrolyte balance.

Particularly relevant for: General Adult Population

3 · PubMed 4 · WebMD 6 · Examine.com

Antimicrobial Activity

Limited

Compounds in juniper berry extract demonstrate in vitro activity against bacteria and fungi, suggesting potential support for immune defense.

Particularly relevant for: General Adult Population

2 · PubMed 6 · Examine.com

Safety & Information

Important safety information & known risks

For educational purposes only • not medical advice

Generally recognized as safe in small, short-term doses but contraindicated with kidney disease and in pregnancy.

warning notices

Potential for digestive upset, kidney irritation, and rare allergic reactions.
Contraindicated in pregnancy and kidney disease.
Monitor for drug interactions, particularly with diuretics and antidiabetic medications.
Avoid use during pregnancy due to risk of miscarriage.
Do not use if you have kidney disease or kidney disorders.
Monitor for kidney irritation with prolonged use; discontinue if symptoms occur.
May interact with diuretic medications; use only under clinical supervision.

Known interactions with medications

diuretics
antidiabetic medications

Contraindications / special precautions

pregnancy
kidney disease

interactions

Important interactions between active ingredient ↔ supplement / medication / food

Juniper berry extract may interact with medications and conditions affecting kidney function and fluid balance.

Juniper may potentiate the effects of diuretic medications, increasing risk of dehydration or kidney stress.

drug · Diuretics

MonitorLimited

Why

Juniper’s own mild diuretic action may enhance drug-induced fluid loss.

recommendation

Monitor for signs of dehydration, electrolyte imbalance, or kidney irritation; use only with healthcare supervision.

4 · WebMD 7 · Drugs.com – Herbal Database

Juniper may lower blood sugar, potentiating effects of antidiabetic medications.

drug · Antidiabetic drugs

MonitorLimited

Why

Animal and in vitro studies suggest juniper berries have mild hypoglycemic effects.

recommendation

Monitor blood glucose closely if combining with blood sugar-lowering drugs.

6 · Examine.com 7 · Drugs.com – Herbal Database

mechanisms of action

Brief explanations of how it works

Antioxidant Polyphenols & Flavonoids

Juniper berry extract contains bioactive compounds that neutralize free radicals and reduce oxidative damage.

1 · PubMed 6 · Examine.com

Essential Oils with Antimicrobial Activity

Volatile compounds (e.g., α-pinene, limonene) in juniper have antimicrobial actions against bacteria and fungi.

2 · PubMed 6 · Examine.com

Mild Diuretic Effects

Saponins and terpenes in juniper promote increased urine output with limited electrolyte disturbance.

3 · PubMed

Sources & References

Primary literature and reviews on which these statements are based

7 sources

PubMed

Antioxidant properties of juniper berry essential oil.

PubMed

Antimicrobial activity of Juniperus communis essential oil.

PubMed

Diuretic activity and urinary effects of Juniperus communis.

WebMD

Overview of juniper berry’s uses, safety, and dosing.

NIH – NCCIH

NCCIH monograph and safety guidance.

Examine.com

Evidence summary for juniper berry supplement.

Drugs.com – Herbal Database

Review of drug interactions, safety, and uses.

Laatst bijgewerkt: 7 februari 2026

This information is for educational purposes only and does not replace medical advice.