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Sulforaphane (Broccoli Extract)

A potent antioxidant compound from cruciferous vegetables showing promise for cellular protection and longevity pathways.

Human Trials

15

850 participants

Risk Level

Low Risk

Monthly Cost

$25$80 /month

Varies by concentration and extraction method

Quick Facts

Category
Supplement
Research Field
Supplements
Evidence Grade
B- – Promising
Risk Level
Low
Monthly Cost
$25 – $80
Human Trials
15

Typical Dose

30–60 mg/day sulforaphane equivalent

Range

10–100 mg/day

Timingwith meals
Formfresh broccoli sprouts (100 g ≈ 50–100 mg) or stabilized sulforaphane capsule (SGS/glucoraphanin + myrosinase)
NotesCooking destroys myrosinase enzyme needed to convert glucoraphanin to sulforaphane – lightly steam or eat raw. For supplements, must contain both glucoraphanin and active myrosinase. Most reliable source: fresh home-grown broccoli sprouts.

For informational purposes only – not medical advice. See disclaimer

Research Velocity

+9%
85 publications in the last 12 months · steady increase in publications
Moderate Community Interest
65 mentions
Sources:LongecityReddit
Updated 2026-03-16

Mechanism of Action

Sulforaphane activates the Nrf2 pathway, which regulates antioxidant and detoxification genes, providing cellular protection against oxidative stress. It also modulates autophagy, enhances mitochondrial function, and exhibits anti-inflammatory properties through inhibition of NF-κB signaling. Additionally, sulforaphane appears to influence epigenetic mechanisms and may support DNA repair processes.

Overview

Sulforaphane is a naturally occurring compound found in cruciferous vegetables, particularly broccoli sprouts, that has garnered significant attention for its potential health-promoting properties. Research indicates that sulforaphane acts as a potent activator of cellular defense mechanisms, primarily through the Nrf2 pathway, which controls the expression of numerous antioxidant and detoxification enzymes. Studies suggest this compound may support healthy aging by protecting cells from oxidative damage, enhancing mitochondrial function, and promoting cellular cleanup processes.

Human studies on sulforaphane supplementation have shown promising results for various health markers, including improvements in antioxidant status, inflammatory markers, and cardiovascular health parameters. Research indicates that bioavailability can vary significantly depending on the form and preparation method, with standardized extracts typically providing more consistent dosing than whole food sources. While most studies have focused on short-term supplementation periods, the compound appears to be well-tolerated with minimal side effects reported in clinical trials.

The growing body of research on sulforaphane spans multiple areas of health and longevity, with studies investigating its effects on cognitive function, metabolic health, and cellular aging processes. While early results are encouraging, researchers note that longer-term human studies are needed to fully establish optimal dosing protocols and confirm the sustained benefits suggested by shorter-term trials and animal research.

Known Interactions

  • May enhance effects of blood thinners due to vitamin K content in some formulations
  • Potential interaction with thyroid medications in individuals with existing thyroid conditions
  • May affect drug metabolism through cytochrome P450 enzyme modulation

Legal Status by Country

📍

Your country (United States)

OTC
✈️

Available without prescription in:

Australia, Brazil, Canada, China, Colombia, Germany, India, Israel, Japan, Mexico, Netherlands, Panama, Russia, South Korea, Switzerland, Thailand, Turkey, UAE, United Kingdom, United States

Australia
OTC
✈️Brazil
OTC
Canada
OTC
China
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✈️Colombia
OTC
Germany
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✈️India
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✈️Israel
OTC
Japan
OTC
✈️Mexico
OTC
Netherlands
OTC
✈️Panama
OTC
Russia
OTC
✈️South Korea
OTC
Switzerland
OTC
✈️Thailand
OTC
✈️Turkey
OTC
✈️UAE
OTC
United Kingdom
OTC
📍United States
OTC

📍 = your selected country · ✈️ = medical tourism destination · Always verify current local regulations before travel.

Key Research

Last verified: 2026-03-16