Biter Bites lets you harvest biter (and spitter) corpses for meat, which heal a little bit, like fish. Corpses may only be gathered manually; not with bots (Factorio never expected you to mine corpses but does let the mod say you can anyway!).

Raw meat heals a small amount and has a relatively long cooldown. Take it back to your base, though, and you can cook them in batches of 6 to make delicious roasts, or steam them into an even more delicious bun. Spitter meats also give a bit of a speed boost.

This mod also increases the "in combat" delay (so it takes longer before you start to heal naturally) and changes fish to give half their healing immediately and the other half over a short amount of time (one second), similarly to the new items.