While they are floating in space, tucked into a space suit, the effort can be so high that you usually need water to not hydrate, and also some food to recover energy.
This energy is taken through energetic food bars that, now, will present another design and composition.
Eating in space
Transporting water to the ISS is very expensive, so a certain amount of water is recycled from the cabin's own condensation. Because the greatest amount of water should be conserved, toothpaste that does not foam is used.
And wet wipes are used for personal hygiene. Astronauts will have their first shower when they return to Earth.
And to eat, yes, with the scuba on you can eat and drink quietly, as if you were in a self service. The so-called Disposable In-Suit Drink Bag (DIDB), a small reservoir with water or isotonic drinks, allows the astronaut to quench his thirst and replenish lost mineral salts with sweat. There is also the option of placing a small energy bar inside the helmet to recover forces.
To reduce the supplies that the Orion spacecraft will carry for its crew (destined to the Moon and reach Mars), NASA is developing a variety of food bars that provide a specific nutritional balance for astronauts, increase caloric density and exceed The taste test.
The goal is to have a series of food bars to select from a variety of flavors such as orange cranberry or roasted nut for the first meal of the day. In the words of Takiyah Sirmonsof the advanced food technology team at NASA's Johnson Space Center in Houston
There are no commercially available bars that meet our needs, so we had to design something that works for the> crew, while trying to achieve an expiration margin of several years. >>
In addition, NASA works at the International Space Station in the cultivation of vegetables that can be used nutritionally by astronauts on long-term trips. NASA plans for 2023 the first manned flight of the Orion spacecraft. The capsule, along with its SLS heavy launcher, are the most expensive parts of the human space exploration initiative that will culminate in a manned landing on Mars in the mid-2030s.