Diet naturally has a tremendous influence on alimentary activity. White bread and white-flour products constitute the most serious cause of constipation. This defective food is lacking in the elements necessary to give life and vitality to the body, because the valuable covering of the grain has been removed in the milling process, while the life germ of the wheat has also been eliminated. The bran, which consists of several minute layers covering the wheat berry, has a distinct value in stimulating peristaltic action, and when it is removed, the resulting white flour must be a defective food. One of the first dietetic changes required in remedying constipation, therefore, is to eliminate white-flour products from the diet. Graham bread, or that made from the whole wheat, or any of the whole grains, rye, oats, barley, corn, is a satisfactory article of diet, and will often remedy constipation without resort to any other dietetic change. What might be termed waste products, or fibrous material in food, are found especially valuable in promoting digestion and active functioning of the bowels. The woody fiber found in vegetables is most valuable. It is sometimes suggested that one should simply consume the juice of his foods but not the pulp. This pulp or fibrous matter, however, is especially important. Following this requirement of bulk or waste in our food, we find such remedies as sand, refined coal oil, a mineral product that passes through the alimentary canal without change, and ordinary black dirt, which is usually taken in its dried form. When using sand, it should be sterilized, and the grains should be rounded and worn smooth by the action of waves or running water. Do not use that in which the grains are sharp-edged. One or more of these products are valuable as a laxative and the devitalizing after-effects of a drug cathartic will be absent. They are, however, not by any means as pleasant as food laxatives, and remedies of this sort should not be employed except as a temporary expedient.