Food rations composed of canned products were given the physiological and hygienic evaluation in the context of their fitness for human volunteers in experiments with head-down bedrest in isolation and confinement. As a result, the food rations were proven to contain the desired quantities of nutrients. Evaluation of food fitness for human subjects was made based on the data of clinical-physiological and biochemical investigations. The rations met the energy and anabolic metabolism demands of human subjects during extreme chamber experiments and were favorable to maintaining good level of vital processes.
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