Be specific what kind of ala are you on. Does it say ala or 100% R-ala? if it just says ala then it is likely a mixture of both. Here is my theory, have you even eaten a lot of asparagus? did you happen to smell bad. Well it is because the sulfurous amino acids in asparagus break down. Now lets look at the make up of Lipoic acid. Lipoic acid contains two sulfur atoms One of the carbon atoms is a mirror image. (R)-(+)-lipoic acid (RLA) and (S)-(-)-lipoic acid (SLA) SLA is a byproduct, it is not naturally occurring.
So my point is Try a 100% R ala. if you are using a 100% R ala Try a different brand if that fails my theory is wrong.