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Head-to-head evidence comparison — which supplement is right for you?
Alpha Lipoic Acid vs Inositol: they're closely matched on evidence (7 vs 7/10); they're alternatives for metabolic health — the best pick depends on your goals. Take the 60-second quiz for a pick tailored to your goals.
Alpha Lipoic Acid and Inositol are closely matched across evidence, studies, and safety.
Verdict
Likely helps
8 of 10 studies with measurable effects showed benefit.
Top outcomes
Verdict
Probably helps
6 of 10 studies with measurable effects showed benefit.
Top outcomes
Shared outcomes (1)
Outcomes where both Alpha Lipoic Acid and Inositol 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
2-4g for general anxiety; 12-18g for OCD/panic
Divided into 2-3 doses, With or without food
Myo-inositol powder (most economical for higher doses)
4-12 weeks
4-8 weeks
2-4 weeks
4-6 weeks
6-12 weeks
3-6 months
First 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
Twenty-two trials were included in the systematic review and meta-analysis.
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
Systematic review and meta-analysis of 50 placebo-controlled trials of dietary supplements lasting at least 12 weeks in infertile men.
Antenatal dietary supplementation with myo-inositol for preventing gestational diabetes
The Cochrane database of systematic reviews (2023) · Meta analysis · n=1319
For the primary neonatal outcomes, only one study measured the risk of a large-for-gestational-age infant and found myo-inositol was associated with both appreciable benefit and harm (RR 1.40, 95% CI 0.65 to 3.02; 1 study, 234 infants; low-certainty evidence).
Inositol Nutritional Supplementation for the Prevention of Gestational Diabetes Mellitus: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
Nutrients (2022) · Meta analysis · n=1321
Pooled results were expressed as relative risk (RR) or mean difference (MD) with a 95% confidence interval (95% CI).
Antioxidants for female subfertility
The Cochrane database of systematic reviews (2020) · Meta analysis · n=7760
Due to the very low-quality of the evidence we are uncertain whether antioxidants improve live birth rate compared with placebo or no treatment/standard treatment (odds ratio (OR) 1.81, 95% confidence interval (CI) 1.36 to 2.43; P < 0.001, I2 = 29%; 13 RCTs, 1227 women).
The points come from the SYDNEY 2 trial (PMID 17065669), which gave 181 people with diabetic polyneuropathy 600, 1,200 or 1,800 mg once daily or placebo for 5 weeks. All three doses beat placebo on the Total Symptom Score, with about the same size of effect: responder rates (a 50% or greater fall) were 62%, 50% and 56% against 26% on placebo, and effectiveness here is the responder rate above placebo. Nausea, vomiting and vertigo rose with dose, and the authors judged 600 mg once daily the best balance of benefit and risk. Doses below 600 mg were not tested. A 6-month trial of 1,200 mg a day in 200 patients (PMID 32370731) found benefit with mild nausea in 6 patients and no withdrawals, which is the basis for the 1,200 mg ceiling. A meta-analysis of 10 trials reported a dose-related trend in symptom scores (PMID 37630823), which the one head-to-head dose trial did not show.
AI-estimated from published studies. Interpret as directional guidance.
Both Alpha Lipoic Acid and Inositol are closely matched — the best choice depends on your specific health goals.
For metabolic health, Alpha Lipoic Acid has a higher relevance score (90 vs 85).
No documented interaction was found in the data searched. This does not establish that this exact combination is safe.
Berberine, inositol, magnesium vs the cinnamon/chromium hype — and the med-interaction warning.
Selenium helps; iodine can WORSEN Hashimoto’s. The honest take on "thyroid support".
Folate is essential; inositol + CoQ10 are the best bets — but conception evidence is limited.
Inositol (40:1), and the supporting cast for insulin resistance, cycles & fertility.
The right pick depends on your goals. Answer a few quick questions for a personalised recommendation — or dig into the full evidence on each.