Broccoli Sprout Extract (Sulforaphane)

Name: Avmacol Broccoli Sprout Extract (Sulforaphane)
Brand: Avmacol
Price: 30.00 USD
Availability: InStock

Worth BuyingLongevity & Anti-Aging

Sulforaphane is the most potent natural activator of the Nrf2 pathway — the master regulator of cellular antioxidant defenses. Avmacol provides broccoli sprout extract with myrosinase enzyme to ensure glucoraphanin converts to active sulforaphane in the gut. Decades of research link sulforaphane to cancer chemoprevention, detoxification enhancement, and anti-inflammatory effects.

76/ 100

Biorank Score

Independently ranked

76/ 100

Biorank Score

Independently ranked by Biorank Laboratories

Our Verdict

Worth Buying

Avmacol Sulforaphane scores 76 — the second-highest in the longevity category — because sulforaphane has one of the strongest and broadest evidence bases of any natural compound relevant to aging. The Nrf2 pathway is central to cellular defense, and sulforaphane is its most potent natural activator. Dozens of human trials (not just one or two) support its bioactivity. Avmacol includes myrosinase enzyme, which is critical for converting glucoraphanin to active sulforaphane — many competing products lack this. No hype penalty because the research is extensive and from independent academic groups.

Key Findings

Sulforaphane is the most potent natural Nrf2 activator — controls >200 cytoprotective genes
Egner et al. (2014) showed 61% enhanced detoxification of pollutants in a 291-person RCT
Includes myrosinase enzyme — critical for glucoraphanin-to-sulforaphane conversion that many products lack
Dozens of human trials support sulforaphane bioactivity — far more human evidence than most longevity supplements
The Nrf2 pathway is central to oxidative stress defense, DNA repair, and mitochondrial function

Evidence Analysis

Sulforaphane is the most extensively studied isothiocyanate, derived from glucoraphanin in cruciferous vegetables (especially broccoli sprouts). Egner et al. (2014, Cancer Prevention Research) showed sulforaphane-rich broccoli sprout beverage enhanced detoxification of airborne pollutants by 61% in a randomized trial in China (n=291). Singh et al. (2014, Cancer Prevention Research) demonstrated sulforaphane modulated Phase II detoxification enzymes in a dose-dependent manner. Fahey et al. (2017, Nutrients) reviewed the extensive evidence for sulforaphane as a Nrf2 activator — the master switch for >200 cytoprotective genes. Houghton et al. (2013, PLOS ONE) showed sulforaphane had anti-inflammatory effects comparable to synthetic Nrf2 activators. The longevity connection comes through Nrf2's role in oxidative stress defense, DNA repair, and mitochondrial function — all central to the aging process. Unlike many longevity compounds, sulforaphane has substantial human evidence across dozens of trials.

Ingredient Breakdown

Ingredient	Dose	Effective Dose	Adequacy	Verdict
Glucoraphanin (from broccoli sprout extract)	35mg (yielding ~7mg sulforaphane)	5-40mg sulforaphane (varies by study)		Adequate
Myrosinase enzyme	Included	Required for glucoraphanin conversion		Optimal

True Cost Analysis

Properly Dosed -- What You Pay Is What You Get

Listed Price

$0.50/serving

$15.00/month at 1 serving/day

True Cost Per Effective Dose

$0.50/effective dose

$15.00/month for effective dosing

Value Score

Decent value

Save $10.50/month (70%)

by switching to NOW Foods Quercetin 500mg

Where It Falls Short

Sulforaphane is not traditionally marketed as a 'longevity' supplement, and the anti-aging framing is newer than the established cancer chemoprevention research. The amount of active sulforaphane generated from broccoli sprout extract varies between individuals based on gut microbiome composition. Fresh broccoli sprouts provide the same compound and are cheaper. GI side effects (gas, bloating) are common at higher doses. The Nrf2 activation story is compelling for cellular defense but direct lifespan extension in humans has not been studied.

Best For

Those seeking the best-evidenced natural Nrf2 activator for cellular defense
People exposed to environmental pollutants (Egner et al., 2014 detoxification data)
Adults interested in cancer chemoprevention with strong epidemiological and clinical backing
Consumers who want a longevity-relevant supplement with decades of human trial data

Not Ideal For

People who eat broccoli sprouts regularly (fresh sprouts provide the same compound more cheaply)
Those with sensitive stomachs (sulforaphane can cause GI discomfort)
Anyone expecting a direct 'anti-aging pill' (sulforaphane's longevity framing is newer than its chemopreventive evidence)
Budget-focused consumers who can grow broccoli sprouts at home for pennies