Vegetables include, commonly though not botanically speaking, all plants used for food except grains and fruits. With exception of beans, peas, and lentils, which contain a large amount of proteid, they are chiefly valuable for their potash salts, and should form a part of each day's dietary. Many contain much cellulose, which gives needed bulk to the food. The legumes, peas, beans, and lentils may be used in place of flesh food.
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