Protein concentrate
Protein concentrate was a type of emergency ration given to people who have been deprived of food for a long period.

Sometime before 2141, Malcolm Reed went a week without eating, subsisting on nothing but water and a little apple juice. Afterward, he could only have protein concentrate for two days. ()

In 2151, Doctor Phlox hoped to tempt Sluggo's appetite with protein concentrate. ()
Foods