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Types of Sulforaphane: Forms & Bioavailability

This content is for informational purposes only and does not constitute medical advice. Consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Broccoli Sprout Extract with MyrosinaseHighOptimal form — myrosinase enzyme converts glucoraphanin to active sulforaphane; look for products that include this enzyme
Stabilized Sulforaphane (Prostaphane)HighPre-formed sulforaphane — does not require enzymatic conversion; most consistent dosing
Glucoraphanin-Only ExtractLow (without myrosinase)Budget option — but requires gut microbiome conversion, which is highly variable between individuals

Broccoli Sprout Extract with Myrosinase

Bioavailability: High. Best for: Optimal form — myrosinase enzyme converts glucoraphanin to active sulforaphane; look for products that include this enzyme.

Stabilized Sulforaphane (Prostaphane)

Bioavailability: High. Best for: Pre-formed sulforaphane — does not require enzymatic conversion; most consistent dosing.

Glucoraphanin-Only Extract

Bioavailability: Low (without myrosinase). Best for: Budget option — but requires gut microbiome conversion, which is highly variable between individuals.

References

  1. (). Rapid and sustainable detoxication of airborne pollutants by broccoli sprout beverage: results of a randomized clinical trial in China. Cancer Prevention Research. DOI
  2. (). Sulforaphane reduces hepatic glucose production and improves glucose control in patients with type 2 diabetes. Science Translational Medicine. DOI
  3. (). Sulforaphane treatment of autism spectrum disorder (ASD). Proceedings of the National Academy of Sciences. DOI