Swanson ® Alpha Lipoic Acid is a dietary supplement designed to supplement the daily diet of adults. Each capsule contains 100 mg of alpha-lipoic acid (ALA). Lipoic acid is an organic chemical compound from the group of carboxylic acids. It has a chain of eight carbon atoms with two sulfur atoms. ALA is a saturated fatty acid. This compound is produced to a small extent by the body and should be supplied with a properly selected and balanced diet. Food sources of ALA include spinach, potatoes, and broccoli. A perfect way to supplement your daily dose of alpha-lipoic acid is the Swanson® dietary supplement. A pack of 120 capsules will allow up to 4 months of use.