Sulforaphane and Other Nutrigenomic Nrf2 Activators: Can the Clinician's Expectation Be Matched by the Reality?
Level 5 - mechanism / opinion, no new human data
Narrative review of mechanistic and pharmacokinetic properties without primary human trial data or systematic synthesis
PubMed 26881038 · doi:10.1155/2016/7857186
What was done
This narrative review examined the molecular and pharmacokinetic characteristics of dietary phytochemicals that activate the Nrf2 (nuclear factor erythroid 2-related factor 2) transcription factor. The authors compared broccoli-derived sulforaphane to other phytochemical supplements, specifically curcumin, silymarin, and resveratrol, with respect to oral bioavailability, Nrf2 potency, and chemopreventive gene expression.
What was found
The abstract provides no numerical data, effect sizes, or statistical metrics. It describes sulforaphane as having significantly higher bioavailability than polyphenol-based supplements due to its low molecular weight and lipophilic properties, alongside greater potency in inducing Nrf2-mediated cytoprotective, redox, and detoxification gene pathways.
Why it matters
Identifying phytochemicals with favorable absorption profiles is critical for translating nutrigenomic concepts into effective interventions. Sulforaphane's superior bioavailability and potency provide a mechanistic rationale for prioritizing it over less bioavailable polyphenols in clinical trials.
Limits
The abstract contains no original clinical trial data, quantitative metrics, or sample sizes. As a narrative review, it lacks a systematic search strategy and does not quantify human clinical efficacy or adverse effects.
Cited by
- supports Sulforaphane, a chemical found in broccoli, activates cellular antioxidant defenses.