Nutrition is a big subject. My own academic background led me to a treasure trove of information; native peoples.Many a successfull exploration came through by listening to what native peoples said. Of course, they have dietary restrictions based on beliefs, much like Jews avoiding pork and shellfish. If you are looking for local information, find your State University book press. Somewhere, sometime a ethnologist/anthropologist wrote a ethnobotany for his dissertation. Of course, when I asked an Apache cowboy about a plant, he shrugged his shoulders. " Gee Chris, nobody eats that old stuff anymore, and went back to his balony , cheese and mustard on white bread sandwich. To eat well in the wilderness, think like a bear. If it's edible and nutritous down it goes. There are traps. In the 60's several campers at a rockconcert ate poisonous frogs and died. A scout troop had a marshmellow roast using poisonous plants for skewers with equally deadly results.there are suprises. A conquistador was lost in the jungle and resolved to commit suicide. he boiled a pudding from a highly poisonous plant. tohis suprise, he lived, and ate it for sustenance walking back to his comrades. He invented that mainstay of cafeteria and hospital food; Tapioca pudding. Ill work up a bibliography for the forum.<br><br>