Origin & tradition
Not traditional as an isolate: epicatechin is the main bioactive in dark chocolate and is also present in green tea and some fruits.
Western tradition · Flavonoid
Epicatechin
The dark chocolate flavonoid linked to myostatin inhibition, cardiovascular protection, and mitochondrial biogenesis in human trials.
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Why longevity buyers care
Key active: (-)-Epicatechin (flavan-3-ol from dark chocolate & green tea).
Epicatechin activates eNOS, promotes mitochondrial biogenesis via PGC-1α, and may inhibit myostatin (a muscle aging suppressor). Multiple small RCTs show cardiovascular benefits (blood pressure, endothelial function). Preclinical data suggests healthspan extension via SIRT1 and AMPK.
Effect summary
Studied health outcomes
Editorial summary — This table is curated by hand from published research consensus, not automatically calculated from our trial database. Grades reflect our interpretation of the literature. Treat as a starting point, not a definitive verdict. See the Evidence panel below for the underlying trial and paper counts sourced directly from ClinicalTrials.gov and PubMed.
| Health outcome | Effect | Magnitude | Grade |
|---|---|---|---|
| Nitric oxide / endothelial function | Increases | Moderate | B |
| Myostatin levels | Decreases | Minor | C |
| Muscle protein synthesis markers | Increases | Minor | C |
| Cardiovascular markers (blood pressure, LDL) | Decreases | Minor | B |
Grade: A = robust RCTs · B = several RCTs / meta-analysis · C = limited or mixed RCTs · D = observational or early data
Dosage guidance
How Epicatechin is typically used
- Typical dose
- 100–300 mg/day
- Form
- capsule or from dark chocolate (≥85% cocoa, ~20mg per 10g)
- Timing
- any time; some studies use pre-workout timing
Primary source is dark chocolate and green tea. Dark chocolate (85%+) provides meaningful amounts. High-dose isolated epicatechin studies show myostatin reduction and muscle effects, but most human data is at lower dietary intake levels.
Informational only — not a prescription or personalised medical advice. Consult a qualified clinician before starting any supplement or medication.
Evidence summary
What the research actually says
74Evidence confidence
Extensive human-trial evidence455 randomized controlled trials · 107 meta-analyses / systematic reviews
Human RCTs in cardiovascular/endothelial function; muscle aging data emerging
Epicatechin activates eNOS, promotes mitochondrial biogenesis via PGC-1α, and may inhibit myostatin (a muscle aging suppressor). Multiple small RCTs show cardiovascular benefits (blood pressure, endothelial function). Preclinical data suggests healthspan extension via SIRT1 and AMPK.
144registered clinical trials reference this intervention
0selected peer-reviewed papers (longevity / aging angle)
Key active: (-)-Epicatechin (flavan-3-ol from dark chocolate & green tea) — a multi-compound botanical extract, so activity is not reducible to a single molecule.
According to PubMed and ClinicalTrials.gov: trial counts from ClinicalTrials.gov, peer-reviewed literature from PubMed. Counts auto-refresh weekly; last checked 2026-06-12. They include trials across many endpoints, not only longevity.
Informational only — not medical advice, a treatment claim, or a substitute for a qualified clinician. Evidence strength varies; we show mixed and null results on purpose.
Evidence collections
Epicatechin appears in
Compare the evidence
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