Honduran Sarsaparilla

BotanicalBest with a meal

What is it

Honduran sarsaparilla (Smilax regelii, sold as S. officinalis) is a climbing vine native to Central America whose root has been used traditionally as a tonic, blood purifier, and in early commercial root beer.

Evidence for 1 use

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

Traditional tonic use

Mixed Evidence

Historical use only; no modern clinical trials demonstrating efficacy.

How it works

Sarsaparilla roots contain saponins (sarsaponin, smilagenin), phytosterols, and flavonoids. The saponins may bind endotoxin in the gut and modulate inflammatory responses, though clinical relevance is unclear. Historical use for syphilis and psoriasis stems from these traditional contexts. Modern clinical evidence is essentially absent.

Dosage

No RDA. Traditional dose: 1-4 g of dried root or 5-20 mL tincture daily.

When and how to take it

WHEN: With meals. HOW: Take as decoction, tincture, or capsule.

1 commercial form

Compare the main delivery options and what they’re best suited for.

Dried root or root tincture

Used in herbal teas and tonics.

Traditional form.

Safety

Generally well tolerated. Saponins can cause GI irritation at high doses. Long-term safety data are limited.

Who should be cautious

Avoid in pregnancy due to limited data. Caution with kidney disease (irritant potential of saponins).

Interactions

May enhance absorption of co-ingested medications via saponin-induced membrane effects (theoretical).

Food sources

Sarsaparilla soda (traditional)

Amount
12 oz
%DV
—

Frequently asked questions

Does sarsaparilla boost testosterone?⌄

Despite marketing claims, there is no clinical evidence that sarsaparilla raises testosterone in humans.

References

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

Research on Honduran Sarsaparilla (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.