Though walnuts are a super-trypto source, they're not the only types of nuts in play. Pistachios, cashews, peanuts, and almonds harbor impressive amounts of tryptophan, as do many varieties of seeds.

The Benefits Of Pumpkin Seeds — And How To Use Them In Pesto Even folks who don't otherwise react to tree nuts can have trouble with pine nuts: See the dreaded "pine mouth," which causes an ...

The idea of a nut-free trail mix never even crossed my mind. So I soldiered on and continued to have an itchy mouth whenever trail mix was on the table. And then I learned.