It is a fact that sugar is easy to digest and that one can soon get energy from it, but feeding is not merely a question of giving digestible aliments, but a question of using foods that are beneficial in the long run. The moderate use of this food is all right, but excess is always bad. Starches need more change than sugars before they can be absorbed by the blood, but they give better results. Chemically there is but small difference between starch and sugar. The starch must be changed into dextrose, a form of sugar, before it can be utilized by the body. The human body contains a small amount of a substance called glycogen, which is an animal starch or sugar. This glycogen is burned. Sugar is a force food. It combines with oxygen and gives heat and energy. The waste product is carbonic acid gas, which is carried by the blood to the lungs and then exhaled. Honey and maple sugar are good foods, but overconsumption is harmful. Sugar eating is largely a habit. Because the sugar has so much of the life and so many of the necessary salts removed in its refinement it is a good food only when taken in small quantities. Nature demands of us that we do not get too refined in our habits, for excessive refinement is followed by decay. It is easy to overcome the tendency to overeat of sugar. Some spoil the most delicious watermelon by heaping sugar or salt, or both, upon it. In this way the flavor is lost. There is not a raw fruit on the market which is as finely flavored after it has been sugared as it was before. True, those who have ruined their sense of taste object to the tartness and natural acidity of various foods, but they are not judges and can not be until they have regained a normal taste, which can only be done by living on natural foods for a while. Fats are obtained most plentifully from nuts, legumes, dairy products and animal foods. They are the most concentrated of all foods, yielding over twice the amount of heat or energy that we can obtain from the same weight of pure sugar, starch or protein. Many who think they are moderate eaters consume enough butter to put them in the glutton class. Salts are present in all natural foods of which we partake. Water is indispensable, for the body has to have fluids in order to perform its functions. Foods are burned in the body. They are valuable in proportion to the completeness with which they are digested and assimilated and the ease with which this process is accomplished. It takes energy to digest food and if the food is very indigestible it takes too much energy. The following remarks on digestibility are according to the best knowledge we have on the subject: