At its core, Subnautica 2 is a survival game, which means your character will constantly fight dehydration, hunger, and the ocean’s predators. Although water exists in abundance, food is its own separate challenge, especially early on when you experience “digestive incompatibility” with most fish.
Although this incompatibility makes it difficult to eat food early on, you can fix this after finding a specific POI. Here’s a complete step-by-step to unlocking digestion in Subnautica 2.
