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Herbal Extract

Black Ginger Extract

Also known as: Kaempferia parviflora, Thai black ginger, Krachai dum, Black cardamom extract (sometimes confused)

C
Evidence

An Asian rhizome extract rich in methoxyflavones with emerging research suggesting potential benefits for athletic performance, blood flow, and energy metabolism. Human evidence remains limited and mostly from Asian studies.

Primary uses

  • Athletic performance and endurance
  • Blood flow and circulation support
  • Energy and stamina
  • Metabolic support

How it works

  • Methoxyflavone-mediated vasodilation
  • Increased nitric oxide production
  • Mitochondrial ATP production enhancement
  • Anti-inflammatory and antioxidant effects

Dosage

Typical range
100-300 mg daily (standardized extract, 40% methoxyflavones)
Timing
Morning or pre-workout; some evidence suggests timing with exercise
With food
May be better absorbed with dietary fat
Duration
Benefits in studies typically observed after 2-4 weeks; may require 4-8 weeks for maximal effect
Special populations
Safety in pregnancy, lactation, and children not established; caution in blood clotting disorders

Forms

  • Standardized extract· 70/100
  • Powder· 70/100
  • Capsule· 70/100

Safety

Common side effects

  • Generally well-tolerated
  • Rare: mild headache
  • Rare: mild gastrointestinal upset

Contraindications

  • Bleeding disorders or anticoagulation therapy (theoretical risk)
  • Pregnancy and lactation (insufficient safety data)
  • Hypersensitivity to Zingiberaceae family

Evidence notes

Preliminary human RCTs show modest benefits for endurance performance and blood flow parameters. Most studies small (n=20-40) and from Asian institutions. Limited long-term safety data. Effect sizes modest. Requires larger, independent replication.

Grade C: Mostly observational or small trials; mechanism is plausible but unproven at scale.

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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider.