Asparagine was named after discovery of the compound in asparagus juice. The distinct smell observed in the urine of individuals who have consumed asparagus is attributed to various byproducts of Asparagine. This amino acid helps your nervous system maintain proper emotional balance. If your body fails to produce proper levels of Asparagine, your nervous system will be adversely affected. This may show up as headaches, confusion, and a noticeable increase in irritability, forgetfulness, and even the onset of depression.