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Antioxidant

Blackcurrant Powder (Ribes nigrum)

Also known as: black currant, blackcurrant extract, Ribes nigrum fruit powder, cassis

C
Evidence

Blackcurrant fruit powder is rich in anthocyanins and polyphenols with preliminary evidence supporting benefits for vision, inflammatory markers, and antioxidant status. Most human studies are small or use concentrated extracts rather than whole fruit powder.

Primary uses

  • Antioxidant support
  • Eye health and vision
  • Anti-inflammatory effects
  • Cardiovascular health
  • Endurance performance

How it works

  • Anthocyanin and polyphenol antioxidant activity
  • Modulation of inflammatory pathways
  • Protection against oxidative stress
  • Potential microcirculation improvement

Dosage

Typical range
1-3 grams daily of whole fruit powder; concentrated extracts typically 300-500 mg daily
Timing
Can be taken any time of day
With food
May be taken with or without food; absorption may be enhanced with fat intake for anthocyanins
Duration
Consistent daily use recommended for several weeks to assess potential benefits
Special populations
Generally well-tolerated; minimal data in pregnancy/lactation

Forms

  • Powder· 70/100
  • Concentrated extract (in some products)· 70/100

Safety

Common side effects

  • Gastrointestinal discomfort (rare at typical doses)
  • Mild allergic reactions in sensitive individuals

Contraindications

  • Allergy to Ribes species
  • Bleeding disorders (theoretical concern; high anthocyanin foods traditionally used; consult healthcare provider)

Evidence notes

Good phytochemical profile with human studies showing promise for vision and inflammation, but evidence is primarily from small RCTs using standardized extracts. Whole fruit powder forms have less robust clinical validation. Grade reflects moderate evidence for specific health claims but limited large-scale RCT data.

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.