During the Shuttle era, EVA suits had a holder for a granola bar, which gave astronauts something to snack on during long spacewalks.
The food bar of compressed fruit, grain, and nuts is wrapped in edible rice paper, and its upper end extends into the helmet area near the crew member’s mouth. When hungry, the crew member bites the bar and pulls it upward before breaking off a piece to chew. In that manner, a small piece of the bar remains extended into the helmet for the next bite. It is necessary to eat the entire bar at one time, because saliva quickly softens the protruding food bar, making it mushy and impossible to break off.
Is this still an issue today? And do we have any data about how much of the granola bar gets eaten?