In acute nephritis (sudden onset of disease, edematous swellings, diminished urinary secretion, much albumen casts, etc.) including exacerbations of the chronic kidney lesions (which present similar symptoms), the diet and in fact the entire plan of treatment is guided by the principle of rest. Milk, gruels, and mineral or plain water are given in quantities of about 150. cc (3 V) every 2 hours or so. If cow's milk is not well borne, a vegetable milk (prepared of nuts or sweet almonds) may be given instead. Meat soups (containing extractive material) and foods rich in protein are forbidden. Lemonade and fruit juices can be given. The work of the kidney is reduced to a minimum and its function partially replaced by other eliminative organs (skin and intestine). With this object in view, the diet can be of assistance. Hot drinks even in small quantities, like lemonade or weak tea, will act as a sudorific, while fruits (containing organic acids) will increase the intestinal activity. As soon as the acute symptoms begin to subside, the diet should be increased. The latter also applies to acute conditions lasting a longer time (10 days, 2-3 weeks etc.). Here likewise more food should be given. The patients are fed on milk, gruels, porridges, bread, 2-3 eggs (boiled or scrambled) and fruits. As little salt and seasoning as possible should be permitted in the diet.