RUST Raw Fish is an edible item obtained through gutting a dead fish carcass. This is the less palatable version of Cooked Fish and may be improved by applying fire (such as a Camp Fire or Barbeque) to it and heating it until done.
Overcooking will result in Charcoal being produced, which is much less beneficial (and appetizing… yuck.)
When consumed, raw fish will restore 5 calories and 1 hydration. Fish remains the only animal meat in the game that doesn’t turn into a unique burnt variety… Maybe it’s really driftwood?