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Alpha Lipoic Acid

Alpha-lipoic acid (ALA) is a sulfur-containing compound that functions as a cofactor in mitochondrial energy production. It is synthesized in small amounts by the body and found naturally in organ meats, spinach, and broccoli. ALA is unique among antioxidants because it is both water- and fat-soluble, allowing it to operate across diverse cellular environments.

Research Evidence
Provides systemic antioxidant protection
Moderate
Benefits cognitive function in healthy adults
Limited
Reduces symptoms of diabetic peripheral neuropathy
Strong
Regenerates other endogenous antioxidants
Moderate
Improves insulin sensitivity in type 2 diabetes
Moderate

Expert Evidence

31 references from 2 experts

2024
2023
2021
Safety & Cautions

Side Effects

  • Nausea
  • Skin rash
  • Potential blood sugar drops when combined with diabetes medication
  • Stomach discomfort
ALA is generally well-tolerated at standard doses. People taking blood sugar-lowering medications should monitor glucose closely, as ALA may enhance their effects.
Pairs Well With
Price Comparison
From $0.10/ct
N
NutricostBest Value
4.6
•240 ct

$0.10/ct

$24.89 total

N
NOW Foods
4.6
•120 ct

$0.13/ct

$15.30 total