[Vitamin metabolism of cosmonauts after short flights]. / Obmen vitaminov u kosmonavtov posle kratkovremennykh poletov.

The vitamin status of the cosmonauts after short-term (4 to 13 days) flights showed different variations. Vitamin consumption was basically adequate to the requirements in space flights. Some vitamins were occasionally in deficiency, thus indicating their enhanced metabolization.

[Vitamin metabolism in cosmonauts during pre-flight training]. / Issledovanie obespechennosti kosmonautov vitaminami v period predpoletnoi podgotovki.

Measurement of vitamin supply of cosmonauts during their intensive training a month preflight showed moderate deficiency of thiamine, riboflavine, pyridoxine, nicotinamide and ascorbic acid. A regular uptake of the vitamin complex for 2 weeks optimized significantly vitamin metabolism.

[Crew nutrition of the 3 base expeditions of the Saliut-6 orbital station]. / Pitanie ékipazhei trekh osnovnykh ékspeditsii orbital'noi stantsii "Saliut-6".

The paper describes the use of advanced space diets of three prime crews who made 96-, 140- and 175-day flights aboard Salyut-6. It is concluded that the diets facilitated maintenance of a good nutrient status, high work capacity and normal health condition.

[Water-salt metabolism in members of the crew of Saliut-4]. / Vodno-solevoi obmen u chlenov ékipazha "Saliut-4".

The paper presents the results of studying the fluid-electrolyte metabolism in P. I. Klimuk and V. I. Sevastyanov before and after their 63-day flight aboard the orbital station Salyut-4. Postflight weight losses in P.I. Klimuk and V.I. Sevastyanov were 5.6 and 3.5%, respectively, the losses being attributed to body dehydration. Postflight both cosmonauts showed a trend for an increased renal excretion of potassium, magnesium, and calcium as compared with their food intake. Those were more expressed on the day after the water load application. Possible causes of the changes and the pattern of recovery of fluid-electrolyte metabolism after a prolonged space flight are discussed.

[Use of freeze-dried products in weightlessness]. / Ispol'zovanie produktov sublimatsionnoi sushki v usloviiakh nevesomosti.

The paper describes the manufacture of food products that can be eaten in weightlessness with the aid of regular table-ware. The consistence of products was altered as a result of an addition of water or modified starch. The resultant products were tested during short-term weightlessness aboard the aircraft-laboratory TU-104A. It was demonstrated that in weightlessness products having sufficient viscosity can be eaten with the help of regular table-ware. An addition of thickening agents, e. g. modified starch, helped to obtain products with necessary properties.