Knowledge of edible seeds are especially important to vegetarians as they will probably get most, if not all their calories from plats that grow from seeds or from seeds themselves. Legumes- foods like beans, soybeans, peas, and peanuts, are in particular very important to vegetarians. These kinds of seed are very important sources of protein, especially for vegetarians, since it would be very difficult to acquire it from any other vegetable source. Legumes also have an evolutionary defense that can be disconcerting to those who eat them. In the right quantities, they can give the eater gas.