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How to eat on the ISS?
Astronauts’ diets are crucial to maintaining their health. To ensure this, each astronaut works with specialized nutritionists to develop a meal plan several months before the mission. Meals are then designed in collaboration with specialists to provide a varied and balanced diet. The astronauts select their meals for a two-week period, which is repeated throughout their entire stay.
In addition to providing adequate nutrition, meals must be designed to be convenient to transport and eat in space. Microgravity imposes additional constraints and rules out certain foods, such as alcohol, carbonated beverages, and bread. Meals must also take up as little space as possible and be easy to eat. Finally, in addition to these long-shelf-life foods, astronauts are also allowed fresh fruits and vegetables. These are sent with each cargo ship, allowing astronauts to have fresh produce for a few days.
CNES Web Conference
To celebrate the return of French astronaut Sophie Adenot, CNES is organizing an online conference on Thursday, November 12, 2026, from 2:00 p.m. to 3:00 p.m. This webinar will be led by Roxane Coiffet, a nutritionist at MEDES, and Alain Maillet, a project manager at MEDES, both in charge of the FoodProcessor experiment, who will explain how astronauts’ meals are prepared during their missions aboard the ISS.
This online conference will last 30 minutes and will be followed by a 10-minute Q&A session. It is open to students in Cycles 3 and 4 and high school. The Zoom link for the conference will be sent to you a few days before the event, once your registration has been confirmed. In addition, some of the questions will be selected prior to the conference from those submitted via the registration form.
