Kachnar

BotanicalBest with a meal

What is it

Kachnar (Bauhinia variegata, the orchid tree), known as kanchanara in Ayurveda, is a flowering tree whose bark is used for thyroid, lymphatic, and skin support, especially in classical formulas like Kanchanara Guggulu.

Evidence for 1 use

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

Thyroid / lymphatic support (traditional)

Mixed Evidence

Based on Ayurvedic tradition and preclinical work. Modern controlled human trials are limited.

How it works

The bark contains flavonoids, tannins, and triterpenoids. Preclinical studies suggest mild antithyroidal, antioxidant, and anti-inflammatory activity, supporting traditional use for goiter and lymphatic complaints. Human clinical evidence is limited and largely embedded in multi-herb Ayurvedic formulations.

Dosage

There is no RDA. Traditional Ayurvedic doses are 1-3 g of bark powder or equivalent extract daily. DSLD does not provide a median dose for this entry.

When and how to take it

Traditional preparations are taken in divided doses with meals. If taking thyroid medication, separate doses by at least 4 hours.

1 commercial form

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Bauhinia variegata bark extract / powder

Often used in Kanchanara Guggulu and similar classical formulas.

Composition varies by extraction.

Safety

Generally well tolerated at traditional doses. Long-term safety data are limited. Theoretical thyroid effects warrant attention in thyroid disorders.

Who should be cautious

Caution in thyroid disease and in those on thyroid medications. Avoid in pregnancy and breastfeeding due to limited safety data.

Interactions

Possible interactions with thyroid hormone replacement or antithyroid drugs based on traditional and preclinical activity. Limited clinical interaction data.

Frequently asked questions

Is kachnar safe with hypothyroidism?⌄

Discuss with a clinician. Traditional thyroid-modulating use means monitoring is prudent if you are on thyroid hormone.

What is Kanchanara Guggulu?⌄

A classical Ayurvedic multi-herb formula containing kachnar bark and guggul, used for thyroid and lymphatic indications.

References

Kachnar on NIH DSLD (US supplement label database) — NIH Dietary Supplement Label Database link

Research on Kachnar (PubMed search) — PubMed link

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Evidence-based·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.