Phytonutrient
Sulforaphane Glucosinolate (SGS)
Also known as: SGS, Glucosinolate, Sulforaphane glucosinolate, Broccoli seed extract
Stable sulforaphane precursor from broccoli seeds. Powerful Nrf2 activator for detoxification and cellular protection.
Last reviewed June 2026 · Evidence graded from peer-reviewed research, not editorial opinion. Educational only — not medical advice.
Every Sulforaphane Glucosinolate (SGS) product we have scored
| # | Product | Score | Per serving |
|---|---|---|---|
| 1 | Jarrow Formulas BroccoMax | 95 A | $0.87 |
| 2 | Thorne Hormone Advantage | 90 A | $0.85 |
| 3 | Thorne Broccoli Seed Extract | 89 A | $1.12 |
| 4 | Complement Sulfora | 81 A- | $2.13 |
| 5 | Codeage Multivitamin Recovery Elite Max | 77 B+ | $1.50 |
| 6 | Codeage Multivitamin Performance Elite Max | 76 B+ | $1.50 |
| 7 | Codeage GLP-Harmony Companion+ | 72 B | $1.33 |
Scored on dose accuracy, form, label transparency and third-party testing. Per-serving cost is list price divided by servings per container. No brand pays to be listed or ranked.
Common questions
How much Sulforaphane Glucosinolate (SGS) should I take?
The typical range is 30-100mg glucosinolate daily. Safe long-term
When should I take Sulforaphane Glucosinolate (SGS)?
With meals. Yes.
Which form of Sulforaphane Glucosinolate (SGS) is best?
Broccoli seed extract — Standardized to SGS.
Is Sulforaphane Glucosinolate (SGS) safe?
Commonly reported: GI upset. Serious warnings: May affect thyroid at very high doses. Supports liver
Which Sulforaphane Glucosinolate (SGS) supplement scores highest?
Jarrow Formulas BroccoMax, at 95/100. Scored on dose accuracy, form, label transparency and third-party testing — no brand pays to be listed or ranked.
Primary uses
- Nrf2 activation
- Detoxification
- Cellular protection
- Phase 2 enzyme induction
How it works
- Converts to sulforaphane
- Activates Nrf2 pathway
- Induces phase 2 detox enzymes
- Supports glutathione
Dosage
- Typical range
- 30-100mg glucosinolate daily
- Timing
- With meals
- With food
- Yes
- Duration
- Safe long-term
- Special populations
- Detox support
Forms
- Broccoli seed extract
Safety
Common side effects
- GI upset
Contraindications
- Thyroid issues (high doses)
Products containing Sulforaphane Glucosinolate (SGS)
Top-scoring supplements in our catalog that list Sulforaphane Glucosinolate (SGS) on the label. Each product is graded on Formulate's ingredient-level rubric — dose accuracy, form, transparency, and third-party testing.
Evidence notes
Strong evidence for Nrf2 activation and detox support
Grade A: Multiple well-designed human trials support the main claims.
Related in Phytonutrient
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Medical disclaimer. This page is educational and does not replace advice from a qualified healthcare provider. Individual needs and risks vary — consult a professional before starting, stopping, or combining supplements, especially if you are pregnant or nursing, taking medication, or managing a health condition.