Pterostilbene vs Sulforaphane (from Broccoli Sprout Extract)

Side-by-side comparison of mechanisms, dosing, interactions, and stacking potential.

PterostilbeneSulforaphane (from Broccoli Sprout Extract)
CategorySupplementsSupplements
Standard Dose
Timing
Cycle Duration
Evidence LevelModerateStrong
A

Pterostilbene

Supplements

Mechanism

Dimethylated analog of resveratrol with 4x greater oral bioavailability. Activates SIRT1 and AMPK, reduces oxidative stress, and improves lipid profiles. Superior pharmacokinetics compared to resveratrol due to methyl groups protecting against glucuronidation.

Contraindications

  • Hormone-sensitive conditions (mild estrogenic activity)

Mechanism

Isothiocyanate that activates Nrf2 — the master regulator of antioxidant defense. Upregulates glutathione synthesis, phase II detoxification enzymes, and heat shock proteins. Also inhibits HDAC (epigenetic modifier) and NF-kB (anti-inflammatory).

Contraindications

  • Thyroid conditions (goitrogen at very high doses)
  • Cruciferous vegetable allergy

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