Evidence-based·Last reviewed May 30, 2026·How we grade evidence

Boerhavia diffusa

Botanical

Useful mainly for traditional use as a diuretic and hepato/renal tonic; not clinically proven.

Quick decision guide

May help most

traditional use as a diuretic and hepato/renal tonic; not clinically proven

Common dosing range

Not well established; traditional root-extract preparations vary

When to expect effects

Not characterized

Watch out for

Human evidence is minimal; effects come almost entirely from animal studies

What is it

Boerhavia diffusa, known as punarnava in Ayurveda, is a creeping herb whose root is traditionally used as a diuretic and for liver and kidney support. Its studied constituents include the alkaloid punarnavine and various flavonoids, but most evidence to date is from laboratory and animal work.

Is it worth it for you?

Use this as a quick fit check, not a diagnosis.

Worth considering if…

You are using it within a traditional Ayurvedic context and accept unproven status

Probably skip if…

You want clinically validated diuretic, liver, or kidney benefits
You are pregnant or breastfeeding
You have kidney disease and need a proven therapy

Evidence at a glance

diuretic and hepatoprotective support

Mixed Evidence
Effect
Not quantified in humans
Best fit
not defined by clinical data
Time
Not characterized

Evidence for 1 use

AI-assisted evidence assessment — talk to your doctor before relying on any single supplement.

diuretic and hepatoprotective support

Mechanism only
Mixed Evidence

Animal studies report diuretic activity and protection of liver and kidney tissue against chemical injury with Boerhavia diffusa root extracts, attributed to punarnavine and flavonoids. Controlled human trials are lacking, so these effects remain preclinical and unproven in people.

Effect size
Not quantified in humans
Time to effect
Not characterized
Best fit
not defined by clinical data

Bottom line: Traditional diuretic and liver tonic with animal-level support but essentially no human evidence.

SourceThajudeen et al., 2022 — PMCDey et al., 2020 — PMC

How to take it

1. Typical dose
No standardized clinical dose; follow conservative product directions
2. Timing
With meals
3. With food
With food

What to track

fluid balance if used as a diuretic
any kidney or liver markers under clinician guidance

Safety

Know the common side effects, key cautions, and who should avoid it.

Common side effects

not well characterized in humans

Who should avoid it

  • pregnant or breastfeeding women
  • people with kidney disease without medical supervision
  • those on diuretic medication

Pregnancy & breastfeeding

Avoid in pregnancy and breastfeeding due to lack of safety data and traditional cautions.

Interactions

diuretic medicationsModerate

Possible additive fluid and electrolyte loss

diabetes medicationsMinor

Animal data suggest possible glucose-lowering effects

Choosing a product

What to look for on the label — and what to be skeptical of.

Look for…

correct species and plant part (root)
standardized extract if available

Be skeptical of…

kidney-cure or detox claims
guaranteed diuretic potency

References by claim

diuretic and hepatoprotective support

Thajudeen et al., 2022 — PMC (2022) link

Dey et al., 2020 — PMC (2020) link

Track Boerhavia diffusa with Pilora

Set up dose reminders, check interactions, and join the community in the Pilora iPhone app.

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Evidence-based·Last reviewed May 30, 2026·Evidence current as of May 30, 2026·How we grade evidence

Disclaimer: These statements have not been evaluated by the FDA. This page is educational, not a substitute for personalized medical advice. Evidence grades are AI-assisted assessments — talk to your doctor before starting any new supplement, especially if you’re pregnant, breastfeeding, on medications, or managing a chronic condition.