On some main points of the question I am now absolutely convinced—viz.:
1. Excessive bulk is always dangerous, often disastrous, causing sudden death in a large number of cases.
2. Starchy foods are best strictly limited as we get along towards middle age and beyond.
3. A life which is largely mental or sedentary will be healthier and longer on a strictly moderate diet.
4. A life largely of physical labour must be dealt with on its own particular conditions.
5. At all times due regard, of course, must be paid to age, weight, etc.
6. On the whole, “eminent physiologists” have erred on the side of excess of proteid being advised.
7. Middle age is the critical time of life in respect to a man's diet in other words, I would say in axiomatic form that as a man feeds at or about middle age, so will he be for the rest of his life.
J. Stenson Hooker, M.D.