depression
"Because this is a food/medicine, there is no way it can cause side effects.  I have only been on it for a little over a week, but I am thrilled!!  I do not feel depressed, and I am feeling energized and better than I have in years!  I have taken every kind of antidepressant there is, I think.  I weaned off the last one, and right now I am not on anything but Deplin.  I am amazed."