Alpha-Lipoic Acid (ALA)
Antioxidant
Also known as: ALA, Lipoic acid, Thioctic acid, Alpha-Lipoic Acid, ALA (detox)
A
Grade A💊 300-600 mg daily (150-300 R-ALA)🎯 8 primary uses🔗 3 synergies⚠️ Review warnings
Levels upHeart & Longevity+50 pts
Overview
Universal antioxidant working in both water and fat. Regenerates other antioxidants and supports blood sugar metabolism.
Primary Uses
AntioxidantBlood sugar supportNeuropathyHeavy metal chelationDetoxificationBlood sugarNerve healthInsulin sensitivity
Frequently Asked About Alpha-Lipoic Acid (ALA)
How much Alpha-Lipoic Acid (ALA) should I take?
The typical effective range is 600 mg R-ALA preferred. Individual needs vary based on age, body weight, diet, and goals — start at the lower end and adjust based on response. Always consult a healthcare provider before starting a new supplement.
When is the best time to take Alpha-Lipoic Acid (ALA)?
Empty stomach for blood sugar; any for antioxidant. Consistency matters more than perfect timing — pick a daily anchor (e.g. with breakfast or before bed) and stick with it.
Should I take Alpha-Lipoic Acid (ALA) with food?
Empty stomach better absorbed.
Does Alpha-Lipoic Acid (ALA) interact with medications?
Yes — known interactions include Diabetes meds - enhance effect. If you take any prescription medication, talk to your doctor or pharmacist before starting Alpha-Lipoic Acid (ALA).
What does Alpha-Lipoic Acid (ALA) pair well with?
Alpha-Lipoic Acid (ALA) stacks well with Benfotiamine, Acetyl-L-carnitine, and B vitamins — these combinations either improve absorption or work synergistically toward common goals.
Who should not take Alpha-Lipoic Acid (ALA)?
Alpha-Lipoic Acid (ALA) should be avoided or used with caution by people with Thiamine deficiency (deplete). Pregnant or breastfeeding women should consult a healthcare provider before use.
What are the side effects of Alpha-Lipoic Acid (ALA)?
Most people tolerate Alpha-Lipoic Acid (ALA) well. The most commonly reported side effects are Hypoglycemia, Skin rash, and GI upset. Side effects are usually dose-dependent — lowering the dose often resolves them.
Dosage
Typical range
300-600 mg daily (150-300 R-ALA)
Timing
Empty stomach for blood sugar; any for antioxidant
With food
Empty stomach better absorbed
Dose Tiers
Moderate
300-600 mg
Optimal
600 mg R-ALA preferred
Therapeutic
600-1,800 mg
Upper Limit
No established UL
Duration
Safe long-term
Special Populations
Diabetics, neuropathy
Research & Studies
Landmark clinical studies on Alpha-Lipoic Acid (ALA). Each title links to a plain-English breakdown — what the study shows, what its limitations are, and how to read around them.
- Treatment of symptomatic diabetic polyneuropathy with the antioxidant alpha-lipoic acid: a meta-analysis
Meta-analysis of 4 RCTs (n=1,258) found 3 weeks of IV ALA 600mg/day significantly improved neuropathic symptoms in diabetic patients — the strongest evidence tier supporting ALA for diabetic neuropathy.
- Efficacy of orally administered alpha-lipoic acid for symptomatic diabetic polyneuropathy: the SYDNEY 2 trial
5-week RCT (n=181) found oral ALA 600mg/day improved neuropathic symptom scores, with higher doses providing no additional benefit — supporting 600mg as the effective oral dose.
Browse all curated studies →
Mechanism of Action
- • Works in water and fat compartments
- • Regenerates vitamins C and E
- • Enhances insulin sensitivity
- • Chelates heavy metals
Evidence Quality
Evidence Grade A
Well-studied for neuropathy and blood sugar
Safety & Contraindications
Serious Warnings
- • Can lower blood sugar significantly
Contraindications
- • Thiamine deficiency (deplete)
Common Side Effects
- • Hypoglycemia
- • Skin rash
- • GI upset
Pregnancy & Breastfeeding
Limited data
Liver & Kidney Notes
Safe
Interactions
💊 Medications
- • Diabetes meds - enhance effect
🧪 Supplements
- • Works with benfotiamine
🍽️ Food & Alcohol
- • No interactions
Stacking & Synergies
Pairs Well With
Avoid Combining With
Multiple glucose-lowering agents
Best Goal Synergies
Blood sugarNeuropathy
Buying Guide
What to Look For
- • R-form more potent
- • Stabilized form
Standardization Markers
R-ALA vs racemicmg content
Adulteration risk
Low
Practical Notes
- • R-form is natural and more potent
- • Monitor blood sugar
- • R-form more bioactive
- • Empty stomach for absorption
- • R-form more effective
Tags
antioxidantblood sugarneuropathyuniversalsulfurdetoxmetabolic
Top Products with Alpha-Lipoic Acid (ALA)
Highest-scored catalog products containing Alpha-Lipoic Acid (ALA), ranked by our scoring engine.
Browse all Alpha-Lipoic Acid (ALA) products →
Related Guides
In-depth guides covering Alpha-Lipoic Acid (ALA) — protocols, comparisons, and use cases.
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Last reviewed: September 2026 by the Formulate Research Team. Sources cited above; methodology and scoring criteria published here.
Cite this page
Formulate Research Team. (2026, September). Alpha-Lipoic Acid (ALA) — Evidence-Based Supplement Guide. Formulate Supplement Encyclopedia. https://app.formulate-health.app/learning/supplements/alpha-lipoic-acid
Educational content based on published research and our scoring methodology. Not medical advice — consult a qualified healthcare provider before starting, stopping, or changing supplements, especially if you take medications, are pregnant, or have a medical condition.