Safety & interactions
Gastrointestinal effects are the most common short-term issue. Thyroid disease, pregnancy, cancer treatment and medicines warrant clinical review, and product potency cannot be inferred from broccoli weight alone.
Sulforaphane activates cellular stress-response pathways including Nrf2 in human biomarker studies. Conversion from glucoraphanin varies greatly with myrosinase activity, gut microbes and product formulation.
Purpose, evidence and practical considerations.
Gastrointestinal effects are the most common short-term issue. Thyroid disease, pregnancy, cancer treatment and medicines warrant clinical review, and product potency cannot be inferred from broccoli weight alone.
Regulatory status: dietary supplement or food-derived compound; not approved to prevent or treat cancer
The evidence on this page does not automatically apply to: