Nutrition for slim Body

We must now consider briefly the fate of the food-stuffs after absorption and the way in which they serve to nourish the body. When we attempt to trace the course and the transforma- tions of these materials from the time that they disappear from the intestine to the final reappearance of their elements as urea and water in the urine, and carbon dioxide and water in the expired air, we find ourselves plunged at once into the most difficult problems of physiology, a full discussion of which, however interesting to the student of dietetics, would not in the present state of our knowledge,or rather our ignorance, yield any practical information bearing upon dietetics.

We shall therefore confine ourselves to a brief summary of the modern view as to the processes by means of which foods are oxidized to furnish energy, or built up into tissues.