There are various sources on the web that claim bananas can help you sleep, cure depression ect. because it contains tryptophan...
I didn't know tryptophan was an antidepressant (or people claimed it was). Hmm, interesting.
Anyway, I'm here to impart second-hand wisdom, the best kind; someone else's research.
I'm interested to see what other members have to say.
According to the Show Penn and Teller: Bullshit
, in an episode about the thousands of insomnia curing claims, they stated that some people claim that tryptophan in milk causes sleepiness. They then go on to explain that if you wanted to get a dose high enough to induce sleep, you would have to drink 21 full glasses of milk immediately before bed. But here's the kicker; in order to have any measurable effect, tryptophan must be taken (in pure form) on an empty stomach! All that milk counteracts the drowsiness you would gain from the tryptophan in the milk. Same goes for turkey.
Anyone with more reliable sources?