Nutrition and metabolism in spaceflight.

Area of Science:

• Space Medicine
• Human Physiology
• Nutritional Science

Background:

• Space Station missions require robust nutritional support for crew health, effectiveness, and morale.
• Existing knowledge on spaceflight metabolism and nutrition has limitations for future long-duration missions.
• Adequate nutrition is critical for crew well-being during extended periods in low Earth orbit.

Purpose of the Study:

• To review current knowledge on nutritional and metabolic aspects of spaceflight.
• To identify critical knowledge gaps related to Space Station nutritional requirements.
• To propose research approaches to address identified nutritional challenges.

Main Methods:

• Synopsis of a Life Sciences Research Office (LSRO) report on spaceflight nutrition.
• Review of available data on metabolic responses, physiological effects of microgravity, and in-flight food systems.
• Identification of knowledge gaps by an LSRO ad hoc Working Group.

Main Results:

• Significant gaps exist in understanding in-flight metabolism, nutrient requirements, and food technology for Space Station.
• Current data on metabolic responses to spaceflight, including extravehicular activity, are insufficient.
• Existing space menus, food packaging, and service methodologies require further development.

Conclusions:

• Further research is essential to meet the nutritional demands of long-duration Space Station missions.
• 38 research suggestions address metabolic needs, nutrient requirements, food systems, and countermeasures.
• Addressing these gaps will ensure crew health and mission success through optimized nutrition.