A patient can get the best benefits from alpha-lipoic acid by taking 600 to 1200 milligrams daily, states WebMD. Alpha-lipoic acid is a fatty acid and an antioxidant that is used to treat a number of conditions such as cataracts, memory loss and diabetes.
One of the benefits of taking alpha-lipoic acid is that it helps treat the symptoms peripheral neuropathy, according to About.com. This condition is a side effect of several conditions including Lyme disease, diabetes, shingles and kidney disease. Symptoms of peripheral neuropathy include numbness, tingling, pain and weakness in the extremities.
Another way that alpha-lipoic acid may benefit a patient is that it may improve brain function, explains About.com. This substance easily passes into the brain. Once there, it helps protect the nerve tissue and brain thanks to its ability to prevent damage from free radicals. Since alpha-lipoic acid helps keep free radicals at bay, it is also an ideal supplement for people looking for a way to slow the effects and conditions associated with age. Alpha-lipoic acid may also help to ease the symptoms of conditions such as Alzheimer's disease, tinnitus and restless legs syndrome. It may also help with weight loss, acne and high cholesterol.