Alpha Lipoic Acid

Alpha lipoic acid (ALA) is a naturally occurring organosulfur compound found in small amounts in many foods, particularly organ meats and green vegetables like spinach and broccoli. Unlike most antioxidants, ALA is both water- and fat-soluble, allowing it to function in virtually every compartment of the body and cell. This unique dual solubility makes it one of the most versatile antioxidants known and has earned it the nickname 'the universal antioxidant.'

ALA functions as a cofactor in critical mitochondrial enzyme complexes involved in energy production (pyruvate dehydrogenase and α-ketoglutarate dehydrogenase). Beyond its metabolic role, supplemental ALA at pharmacological doses acts as a potent antioxidant: it directly scavenges free radicals, regenerates oxidized forms of Vitamin C, Vitamin E, and glutathione back to their active states, and chelates metal ions (including iron and copper) that catalyze harmful oxidative reactions. ALA also induces Nrf2 pathways, upregulating the body's own antioxidant enzyme production.

ALA has particularly strong clinical evidence for diabetic peripheral neuropathy — it is approved as a prescription drug for this indication in Germany. At doses of 600–1,200 mg daily (typically given intravenously in clinical settings, though oral forms show benefit), ALA reliably reduces symptoms of numbness, burning, and pain in peripheral nerves damaged by diabetes. It also improves insulin sensitivity by activating GLUT4 transport and may improve lipid profiles and weight in metabolic syndrome.