Alpha-lipoic acid, also called thiotic acid, is a fatty acid that is naturally produced in the body. The chemical, a powerhouse of energy production, also functions as an antioxidant, helping to eliminate disease-causing free radicals.
Because alpha-lipoic acid is both water and fat soluble, it can travel to every part of the body—even the brain. Alpha-lipoic acid should not be confused with alpha-linolenic acid—a very different omega-3.
How much you should have: The amount of alpha-lipoic acid needed by an adult varies. Research shows that it is safe to take up to 600 milligrams of alpha-lipoic acid in a day, though 20 to 50 milligrams is more than enough to reap its benefits.
Supplements are often available in 30 to 100 milligram tablets. To be safe, speak with a nutritionist or your physician before adding alpha-lipoic acid supplements to your diet.