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Schisandra chinensis (Five Flavor Berry)
A 'five-flavor' adaptogenic berry traditionally used for stress, liver, and endurance. The honest verdict: human evidence is thin — small, single, unreplicated RCTs hint at benefits, but most studies are reviews or preclinical.
What the evidence says
Most Schisandra studies are mechanism or observational rather than RCTs that measure a clinical effect — keep findings provisional.
Most evidence is from high-quality meta-analyses and randomised trials published 2005–2026 with a typical study size of 36 participants.
Based on 47 studies · 2 meta-analyses · 13 RCTs · 1,621 total participants
Confidence
High confidenceWhat the studies found
By outcome
Small human RCTs show signals for muscle strength, liver function, glucose, and menopausal symptoms, but each is tiny and single, and most of the 31 studies are reviews or preclinical, keeping evidence emerging.
7 trials ongoing or recruiting · 13 completed on ClinicalTrials.gov
2 of the completed trials have posted results
Registered trials show research momentum for Schisandra, not proof of effect — a registration is a plan, and posted results are sponsor-reported, not peer-reviewed. They are never counted toward the evidence rating above.
Browse these trials on ClinicalTrials.govClinicalTrials.gov · as of Oct 2026
Schisandra, the 'five flavor berry' of Traditional Chinese Medicine, is an adaptogen traditionally used for liver support, stress adaptation, mental clarity, and endurance.
Its lignans (schisandrins) have plausible hepatoprotective and adaptogenic mechanisms, but the human evidence is genuinely thin: the few placebo-controlled RCTs (for muscle strength, glucose, liver markers, and menopausal symptoms) are small (n≈20-80), mostly single and unreplicated, and the bulk of the literature is reviews or preclinical work rather than efficacy trials.
Treat the signals as promising but unproven, not established benefits.
Modulates stress response
Protects and regenerates liver tissue
How Schisandra works — from molecular targets to health outcomes. Click an edge to see supporting research.This visualization is in beta — pathways are being refined and expanded.
Traditionally contraindicated — avoid
Schisandra lignans modulate CYP3A4 and P-glycoprotein and can alter blood levels of CYP3A4-metabolized drugs — significant for narrow-therapeutic-index agents.
Schisandra can markedly raise tacrolimus blood levels (CYP3A4/P-gp interaction), risking nephrotoxicity — avoid the combination.
May alter warfarin metabolism via CYP effects — monitor INR closely.
Tip: Take with food
Tip: Reduce dose
Schisandra has an evidence score of 4.5/10 — emerging evidence based on 47 indexed studies, including 2 meta-analyses. A 'five-flavor' adaptogenic berry traditionally used for stress, liver, and endurance. The honest verdict: human evidence is thin — small, single, unreplicated RCTs hint at benefits, but most studies are reviews or preclinical. Representative study: PMID 40527813.
The commonly studied dose of Schisandra is 250-1,000 mg extract a day (the cited trials used 1,000 mg of extract a day), or 500-2,000 mg dried berry, a typical label dose for the whole berry that no cited trial tested. Individual needs vary — start at the lower end of the range and adjust based on how you respond.
The best time to take Schisandra is in the morning. Taking it with food is preferred. Schisandra chinensis contains lignans (schisandrins A, B, C) that act as adaptogens modulating the HPA axis and supporting liver detoxification.
Schisandra has a safety rating of "moderate". That is a category, not a measure of individual risk, and there are precautions worth knowing. Reported side effects are uncommon and include heartburn, decreased appetite. Use caution if any of these apply to you: Peptic ulcer (may increase stomach acid); Concurrent tacrolimus or other narrow-therapeutic-index CYP3A4 substrates without clinician oversight.
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Reviewed by Dr. Baher Al Hakim · Last reviewed May 2026 · evidence from 47 studies · how we score · editorial policy
This information is for educational purposes only. It is not a substitute for professional medical advice. Always consult a qualified healthcare provider before starting, stopping, or changing any supplement or medication.
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