Pumpkin Seeds

Healthbolt on pumpkin seeds (and what your body does with all the tryptophan they pack):

...tryptophan works by morphing into seratonin, (which is known for fighting depression, reducing anxiety, and minimizing anger), making tryptophan pretty much the Wonder Amino Acid. In fact, in a recent study, folks who were asked to give a speech after eating a pumpkin seed bar had much lower heart rates and anxiety an hour later than those who didn't have the seeds.

Quick Googling turned up Dagoba's Seeds chocolate bar (68% cocoa, plus hemp, pumpkin and sunflower seeds). Mmm, something to indulge in come mid-July, after my second sentence is up.