Add tryptophan synthenase

[CatBalls]

And what effects do you propose it to have?

I could see consuming massive amounts of certain foods leading to some side-effects, much like real life. Besides high doses, what would it do at normal concentrations? I mean, are we talking Tryptophan to 5-HTP to Serotonin?

Converts to serotonin if you are wearing the burberry hat and holding the glowstick. You rub yourself against anyone who comes within one square of you.