SP
StackPedia
All Supplements

Alpha-Lipoic Acid

vitamins

Alpha-lipoic acid (ALA) is a naturally occurring compound that functions as a powerful antioxidant and cofactor in cellular energy metabolism. It has been extensively studied for its potential benefits in managing blood sugar levels, neuropathic pain, and oxidative stress-related conditions.

Benefits

Antioxidant support and free radical scavenging
Blood sugar regulation and insulin sensitivity
Diabetic neuropathy symptom relief
Mitochondrial energy production
Cognitive function and neuroprotection

Dosage

Typical Dose

300-600 mg daily in divided doses

Upper Limit

1200 mg daily

Timing

Take on an empty stomach 30 minutes before meals for optimal absorption

Forms & Bioavailability

R-Alpha-Lipoic Acid

More biologically active form; better absorbed and more potent than racemic mixture

Racemic Alpha-Lipoic Acid (R/S mixture)

Standard form; contains equal parts of R and S isomers; less expensive but lower efficacy

Side Effects

Nausea and gastrointestinal upset
Skin rash or itching
Potential hypoglycaemia (excessive blood sugar lowering)
Headache or dizziness

Interactions

May enhance effects of diabetes medications; requires monitoring
Can potentiate thyroid hormone absorption; separate dosing by 4+ hours
May interact with chemotherapy agents in cancer treatment

Research Summary

Clinical studies demonstrate ALA's efficacy in improving symptoms of diabetic peripheral neuropathy and enhancing insulin sensitivity in type 2 diabetes. Research also supports its role in reducing oxidative stress and inflammation, with emerging evidence for cognitive and neurological benefits, though more rigorous human trials are needed for some applications.

Where to Buy Alpha-Lipoic Acid

We recommend buying from reputable retailers. Check reviews and third-party testing.

Affiliate links — we may earn a commission at no extra cost to you.

Disclaimer: This information is for educational purposes only and is not medical advice. Always consult a healthcare professional before starting any supplement, especially if you have existing health conditions or take medication.