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Head-to-head evidence comparison — which supplement is right for you?
PEA 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 6 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Alpha Lipoic Acid and PEA 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
600-1200mg
With meals, Split into 2-3 doses
Micronized or ultra-micronized PEA
4-12 weeks
4-8 weeks
2-4 weeks
2-8 weeks
4-8 weeks
Ongoing
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.
Extended Treatment with Micron-Size Oral Palmitoylethanolamide (PEA) in Chronic Pain: A Systematic Review and Meta-Analysis
Nutrients (2024) · Meta analysis · n=742
These two obtained scores corresponded to a 35.1% pain intensity reduction within the first month, followed by a further 35.4% during the second month.
Palmitoylethanolamide in the Treatment of Chronic Pain: A Systematic Review and Meta-Analysis of Double-Blind Randomized Controlled Trials
Nutrients (2023) · Meta analysis · n=774
PEA was found to reduce pain scores relative to comparators in a pooled estimate, with a standard mean difference of 1.68 (95% CI 1.05 to 2.31, p = 0.00001).
Navigating agitation in neurodevelopmental disorders: A comparative study of pharmacotherapies via network meta-analysis in children and adults with autism spectrum disorder or intellectual disabilities
Journal of psychopharmacology (Oxford, England) (2025) · Meta analysis · n=2503
Importantly, these treatments were generally well-tolerated, with no significant increase in all-cause dropouts compared to placebo, highlighting their suitability for clinical use in managing agitation in individuals with ASD or ID.
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 multiple meta-analyses showing ~35% pain reduction. Studies primarily used micronized formulations which may have better bioavailability than standard forms. Most benefits observed within 4-6 weeks of treatment.
AI-estimated from published studies. Interpret as directional guidance.
PEA has a higher evidence score (8.5/10 vs 9/10) and wins in 2 of 3 categories.
For reduce inflammation, PEA has a higher relevance score (85 vs 80).
No known interactions between Alpha Lipoic Acid and PEA have been documented in our database. However, always consult a healthcare provider before combining supplements.