However, the German Aerospace Center says on its website that the meals are not "extra healthy", and there will sometimes be pancakes or other sweet treats.
The center is now looking for test person to take part in a bed rest study from September to December 2019.
Scientists are looking for women to stay in bed for 60 days to help them study how weightlessness affects the human body.
The prolonged bed rest is part of a study that launched this week into the effects of weightlessness on the human body.
When astronauts are in space, the weightlessness caused by microgravity changes their body.
Each participant will have a private room and stay in a bed inclined at 6 ° with the head end downwards.
These conditions will push the blood back to their extremities, much like artificial gravity would for astronauts.
Scientists will use the volunteers to test whether daily sessions inside an artificial gravity chamber could be used to stop deterioration on long-distance missions to places like Mars.
Study participants, who will also spend a total 19 days preparing and recovering from the bed portion of the study, will be paid $19,000, officials said.
They will go through 5 days of familiarization and upon the program's completion will be given 14 days of rest and rehabilitation. The study will run for 89 days at the German Aerospace Center. In 2017 NASA admitted 12 volunteers at the German Space Agency's (DLR) Institute of Aerospace Medicine's for a month to observe and analyze the effects of fluid pressure on astronauts' eyes and optic nerves.
According to the New York Post, a group including NASA and other researchers is conducting the study in Germany.