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Head-to-head evidence comparison — which supplement is right for you?
Sulforaphane wins 2 of 3 categories. Both are solid choices — the best pick depends on your specific goals.
Verdict
Likely helps
13 of 14 studies with measurable effects showed benefit.
Top outcomes
Verdict
Likely helps
6 of 7 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Alpha Lipoic Acid and Sulforaphane have evidence — compare verdict strength side-by-side.
300-600mg
On empty stomach for best absorption, 30-60 minutes before meals
R-Alpha Lipoic Acid (R-ALA) — the natural form
10-50mg sulforaphane (or equivalent from broccoli sprout extract)
With meals, Morning preferred
Stabilized sulforaphane (Prostaphane, Avmacol) or broccoli sprout extract with myrosinase
4-12 weeks
4-8 weeks
2-4 weeks
2-4 weeks
2-4 weeks
1-2 weeks
Effects of Oral Alpha-Lipoic Acid Treatment on Diabetic Polyneuropathy: A Meta-Analysis and Systematic Review
Nutrients (2023) · Meta analysis · n=1242
ALA treatment produced favorable results for TSS (a dose-related trend was observed), NDS, and the global satisfaction score.
Effects of selected dietary supplements on migraine prophylaxis: A systematic review and dose-response meta-analysis of randomized controlled trials
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology (2025) · Meta analysis
In adults, compared with placebo, these supplements did not significantly affect other outcomes, and omega-3 supplementation did not yield a statistically significant reduction in any of these outcomes.
The Effect of Dietary Supplements on Male Infertility in Terms of Pregnancy, Live Birth, and Sperm Parameters: A Systematic Review and Meta-Analysis
Nutrients (2025) · Meta analysis · n=50
This study found no convincing evidence of an effect of any dietary supplements on male infertility.
Broccoli Consumption and Risk of Cancer: An Updated Systematic Review and Meta-Analysis of Observational Studies
Nutrients (2024) · Meta analysis · n=31292
In summary, the findings indicate that individuals suffering from some type of cancer consumed less broccoli, suggesting a protective biological effect of broccoli on cancer.
Do Brassica Vegetables Affect Thyroid Function?-A Comprehensive Systematic Review
International journal of molecular sciences (2024) · Systematic review
We analyzed the results of 123 articles of in vitro, animal, and human studies, describing the impact of brassica plants and extracts on thyroid mass and histology, blood levels of TSH, T3, T4, iodine uptake, and the effect on thyroid cancer cells.
Potential Effects of Bioactive Compounds of Plant-Based Foods and Medicinal Plants in Chronic Kidney Disease and Dialysis: A Systematic Review
Nutrients (2024) · Systematic review
Systematic review examining Sulforaphane efficacy
Based on multiple meta-analyses showing dose-related trends for TSS improvement. 600mg/day most studied dose with significant benefit vs placebo in 73% of studies. Limited data on doses above 600mg.
Based on meta-analyses showing significant improvements in Social Responsiveness Scale and irritability/hyperactivity scores. Effects were modest and required 4-10 weeks of supplementation. Limited to autism populations only.
AI-estimated from published studies. Interpret as directional guidance.
Sulforaphane has a higher evidence score (7.5/10 vs 9/10) and wins in 2 of 3 categories.
For metabolic health, Alpha Lipoic Acid has a higher relevance score (90 vs 65).
No known interactions between Alpha Lipoic Acid and Sulforaphane have been documented in our database. However, always consult a healthcare provider before combining supplements.