Side Effects:

When R-alpha lipoic acid is taken at recommended doses, there aren't any harmful side effects that are to be expected. Only at higher doses are they noticed. Side Effects can include: upset stomach, nausea, diarrhea, flatulence. Taking greater amounts of ALA can lead to lowering of blood sugar.

R-alpha Lipoic Acid Dangers: ALA is a natural supplement and dangers for using it are almost non-existant, with few negative side effects. There have been some individuals who shown signs of allergic reactions to Alpha Lipoic Acid. Allergic reactions can include skins rashes, swelling of extremities and face, itching, chest tightness and difficulty in breathing. You should discontinue use if you have these symptoms.

If your are taking medication to lower blood sugar levels, such as memorfin (glucophage), glyburide (DiaBeta) or glipizide (glucotrol), you will need to seek medical supervision, as there may be harmful interactions if ALA is taken with these medications.