Dettweiler: German Congress of Internal Medicine, 1905. To prevent the development of diabetes, also, especially in cases of children of diabetic parents, a vegetarian diet can be of great use. In the chapter on the deleterious action of excessive meat food, we refer in detail to the fact that diabetes is most often found in persons addicted to much meat food, especially if carbohydrates are taken in large quantities at the same time. Obesity is seldom found in persons who live on a vegetarian diet. Carbohydrates can be taken in large quantities without producing obesity, if only meat is not taken at the same time in more than a limited amount. Arteriosclerosis is very seldom found in persons who have been addicted for many years to vegetarianism. Not only is this due to the fact that a vegetarian diet is the least deleterious to the circulatory system, but as we have mentioned above, the viscosity of the blood is also diminished; but with a vegetarian diet, coupled with milk, there is much less intestinal putrefaction, if any, than with a meat diet. It is well known that the production of arterial sclerosis can be facilitated by the products of intestinal putrefaction. As Brissaud and Siccard have shown, the injection of adrenalin and uric acid at the same time into animals produces atheromatosis in each case. We also know, from clinical observation generally, that arteriosclerosis is of greater frequency among gouty people, and the frequency of diabetes among such can be attributed to arteriosclerotic changes in the pancreas (endarteritis obliterans, Flexner). Marcel Labbé has shown at the French Congress of Internal Medicine in Paris, 1907, that a diet of cereals, milk, butter, and sugar diminishes the quantity of uric acid, while the addition of nucleo-albumins augments it. Vegetarian diet is of great service to the intestines, their torpidity being thereby greatly overcome; and if milk be taken at the same time intestinal putrefaction is checked and the tendency to catarrh improved. Such a diet is also of great value to other important organs: the thyroid, liver, and kidneys; as in cases where such are in a diseased condition, the chances of recovery or for a more prolonged life are much enhanced, because such a diet is least harmful to these organs. But the greatest advantages of a vegetarian diet are seen in the prevention of the ravages of old age by this means. By the use of such a diet we can, to a certain extent, check the degeneration of those organs which play the most important pathological roll in the development of old age, and which have already been mentioned several times, viz.: the thyroid, liver, and kidneys (see the hygiene of these organs). The degeneration of these may produce the retention of toxic products and a condition of auto-intoxication; but by a vegetarian diet, coupled with milk, these troubles may be more easily avoided.