~Loss of Weight.~--The slight loss of weight, which may be noticeable as the result of starvation, is not undesirable, especially in those cases where obesity is a prominent feature. In fact care must be exercised in the follow-up treatment to prevent the taking on of weight by the diabetic individual, since, according to Allen, it is often found that even moderately obese patients (180 lb.) continue to excrete a small amount of sugar so long as they hold this weight, even upon a low carbohydrate diet, whereas those same patients show no difficulty in becoming sugar free if the weight is reduced by ten or fifteen pounds. SCHEDULE FOR TREATMENT AND METHODS OF DETERMINING FOOD TOLERANCES A number of schedules have been devised to enable the nurse successfully to carry out the Allen Treatment. In following out this treatment and reeducating the organs afterward to tolerate foods which they have been unable to handle on account of the impairment of the sugar-making organs, it is necessary to make a series of tests whereby the diet is gradually increased in its various constituents until the diabetic patient is able to handle a reasonable amount of carbohydrates as well as other foods which have given more or less trouble in the past. The following schedule, after Joslin,[142] is included, and a careful study of it is advised in order that the nurse may intelligently carry out the Allen Treatment. ~Schedule.~--Fasting in many cases begins at once and the patient experiences no ill effects from it. However, in severe, long-standing cases many patients do better if the fats are omitted at once and the rest of the diet left unchanged for two days. Then the proteins in the diet are omitted and the carbohydrates cut in half. This halving of the carbohydrates is continued daily until only 10 grams remain, after which they too are omitted. The fast is thus made complete and remains so until the urine is entirely free from sugar. ~Carbohydrate Tolerance~ is determined by giving, as soon as the urine has been sugar-free for twenty-four hours, 150 grams of 5% vegetables. This is equivalent to from 8 to 10 grams of carbohydrates. After this 5 grams of carbohydrates, or 75 grams of 5% vegetables, are added daily to the diet until the patient is taking 20 grams. Then the addition of 5 grams of carbohydrates is made every other day, using the fruits and vegetables belonging to the 10% and 15% carbohydrate group, until potatoes and oatmeal and finally bread can be tolerated unless sugar appears in the urine before this or the tolerance reaches 3 grams to each kilogram of body weight or, in other words, until a man weighing 150 pounds is consuming 225 grams of carbohydrates per day.