[Nutritional content in the daily diet from selected nursing homes for the aged in State of Hessen Second Report--minerals].

Daily diet from 20 nursing homes for the elderly in the German state of Hessen were collected over a period of seven days. After weighing and protocoling, the components of the meals were combined to one sample per day. The homogenized samples were analyzed for the minerals sodium, potassium, calcium, magnesium, phosphorus, iron, zinc, manganese, copper, nickel, and chromium.

[Microbiological condition of bottled natural mineral waters, drinking water, as well as water from mineral springs].

We are now in the midst of a critical discussion on the microbiological quality of bottled natural mineral water, springwater, so-called "table water" and drinking water. "Still" waters have high colony counts after long storage, whereas in carbonated bottled products multiplication of oligocarbophilic microorganisms is suppressed by carbon dioxide. Opportunistic species are also found in bottled water.

[Contribution of natural mineral water to the iodine supply of the population].

Most parts of Germany are iodine deficiency areas. Daily iodine intake may be increased by food with high iodine content. Therefore determination of iodine in different foodstuffs is of importance.

[Nutritional intake of daily diets in nursing homes for the aged. I--Energy, protein, fat, carbohydrate and fiber].

Daily diet from 20 nursing homes for the elderly in the German state of Hessen was collected over a period of 7 days. Caloric free beverages were not included. After weighing and protocoling, the components of the meals were combined to one sample per day.

[Absorption and renal elimination of bismuth from 6 different bismuth salts after a single dosage].

The absorption and renal excretion of bismuth from seven pharmaceutical bismuth preparations was studied in five healthy volunteers. Following a single oral dose of colloidal bismuth subcitrate (CBS), basic bismuth salicylate (BSS), basic bismuth gallate (BSG), basic bismuth carbonate (BSC), bismuth aluminate (BA) and two different basic bismuth nitrate (BSN) preparations, ingested one hour prior to the breakfast, containing 350 mg bismuth in all but one bismuth subnitrate compound, the latter was given in a 1480 mg dose laid on granulated gum karaya, the bismuth serum concentrations (0 to 6 h) and urinary excretion (for 2 days) were measured. Slight amounts of bismuth were rapidly absorbed in all experiments with low transient mean peak concentrations between 0.