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Sulforaphane — Frequently Asked Questions

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

Frequently Asked Questions

Can I get sulforaphane from eating broccoli?

Yes, but broccoli sprouts are a far better source — containing 20-100 times more glucoraphanin than mature broccoli. Raw broccoli sprouts provide the most sulforaphane because cooking destroys the myrosinase enzyme needed for conversion. If you eat cooked broccoli, adding mustard seed powder (which contains myrosinase) can restore sulforaphane production. Supplements standardized with myrosinase offer the most consistent dosing.

What is Nrf2 and why does it matter for longevity?

Nrf2 (nuclear factor erythroid 2-related factor 2) is a transcription factor that activates over 200 genes involved in antioxidant defense, detoxification, and inflammation control. It is your body's master switch for cellular protection. Nrf2 activity declines with age, leaving cells more vulnerable to oxidative stress. Activating Nrf2 with sulforaphane restores this protective capacity and is considered one of the most promising longevity strategies.

Why do I need myrosinase with sulforaphane supplements?

Most broccoli sprout supplements contain glucoraphanin, which is the inactive precursor. The myrosinase enzyme converts glucoraphanin into active sulforaphane. Without myrosinase (either from the supplement or your gut bacteria), conversion rates are only 1-40% and highly variable between individuals. Look for products that include myrosinase enzyme, or choose pre-formed stabilized sulforaphane for consistent results.

Full Sulforaphane Guide

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