The general plan of treatment is dietetic rather than pharmaceutical, though the art of preparing drugs had reached a high degree of complexity at Salerno.
The conditions of diet and digestion in children are now far better understood, and many of their maladies, formerly regarded as organic or incomprehensible, are cured or prevented by dietetic rules.
Here are the hospital and laboratories of the American Medical Missionary College (of Chicago) and the Battle Creek Sanitarium, established in 1866, which was a pioneer in dietetic reform, and did much to make Battle Creek important in the manufacture of health foods, and in the publication of diet-reform literature.
The city is a trading centre for the rich agricultural and fruit-growing district by which it is surrounded, has good water-power, and is an important manufacturing centre, its chief manufactured products being cereal health foods, for which it has a wide reputation, and the manufacture of which grew out of the dietetic experiments made in the laboratories of the sanitarium; and threshing machines and other agricultural implements, paper cartons and boxes, flour, boilers, engines and pumps.
Beri-beri is a dietetic deficiency disease which manifests itself by cardiac weakness with shortness of breath, swelling of the legs and peripheral neuritis with numbness of the limbs and weakness.
The climatic conditions of the Persian Gulf particularly seem to predispose to this disease, for it very frequently attacks white persons resident there, especially if they are exposed to dietetic hardships.
Nor is their employment less considerable in the manufacture of confectionery and in the preparation of many dietetic articles.
They both stimulate the grey nerve-cells in the brain and cord, this being the foundation of their dietetic value and their use as nervine stimulants.
Moral or dietetic remedies were more often prescribed than drugs.
The medicinal and dietetic use of hemp spread through India, Persia and Arabia in the early middle ages.