How are astronauts able to digest food in space where there is no gravity?

The food in their mouth is basically pushed to their stomach by muscles that are in the lining of the tube between their mouth and stomach. Then, in their stomach the digested food is pushed again into your intestines. In the early year of space travel, astronauts actually used straws to suck paste-like foods that were dehydrated, out of tubes. Drinks and foods will just float away if they werent handled properly in space.

Explanation:

...~ Activity theory predicts that older people will do different activities than younger people, with more time budgeted for leisure. The relationship between age and time spent doing these leisure activities with others, under activity theory, is hypothesized to be positive. ~...

I hope I helped!~

-Koko uwu