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Related Experiment Videos

The relationship between space sickness and preflight diet.

K E Simanonok1, R L Kohl, J B Charles

  • 1Universities Space Research Association, Johnson Space Center, Houston, Texas 77058.

The Physiologist
|January 1, 1993
PubMed
Summary

Astronaut diets were meticulously planned for Skylab missions to ensure nutrient intake, but macro-nutrient proportions were less controlled. This study investigated if dietary factors could contribute to space sickness.

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Area of Science:

  • Space Medicine
  • Nutritional Science
  • Human Physiology

Background:

  • Astronauts on Skylab missions (1973-1974) consumed carefully planned diets.
  • Diets were controlled for specific nutrients (calcium, phosphorus, protein) to mitigate bone and muscle loss.
  • Macro-nutrient proportions (carbohydrate, fat, protein) were less strictly controlled, based on astronaut preferences.

Purpose of the Study:

  • To investigate the potential role of diet as a contributing factor to space sickness.
  • To explore the relationship between dietary intake and physiological/behavioral changes in astronauts.

Main Methods:

  • Analysis of astronaut food preferences and selection from a list of 70 items.
  • Development of rotating daily menus with controlled elemental composition.
Keywords:
NASA Center JSCNASA Discipline NeuroscienceNASA Discipline Number 00-00NASA Discipline Number 16-10NASA Program FlightNASA Program Space Physiology and Countermeasures

Related Experiment Videos

  • Documentation of all deviations from planned inflight, preflight, and postflight diets.
  • Consideration of genetic influences on dietary regulation and neurotransmitter precursor availability.

    • Main Results:

    • While specific nutrient intake was managed, the balance of carbohydrates, fats, and proteins was incidentally determined by food preferences.
    • Previous research indicated genetic components in dietary regulation and links between diet, neurotransmitters, and behavior.
    • Preflight physiological variables were known to correlate with space sickness.

    Conclusions:

    • Dietary self-selection and macro-nutrient composition warrant further investigation as potential contributors to space sickness.
    • Understanding the interplay between diet, physiology, and behavior is crucial for astronaut health in space.
    • Further research is needed to establish a definitive link between specific dietary patterns and the incidence of space sickness.