What Is Digestive Incompatibility in Subnautica 2?
Digestive Incompatibility is a starting condition that prevents your character from eating any local food. Every fish you catch, cook, or try to eat is completely wasted because you're going to suffer from penalties because your biology is alien to this world.
The only safe food before the fix are Nutrient Blocks, found in supply crates around the starting area. Use them sparingly until the adaptation is unlocked.
Note!
In Creative Mode, all Adaptations including Digestion are unlocked from the start. This guide only applies to Survival Mode.
How to Fix Digestive Incompatibility
To be able to eat and consume local flora and fauna, you need to interact with the Angel Comb, located approximately 160 meters northeast of the Lifepod at coordinates -330975, 419034, -607. It sits directly above Anita's Blackbox.
Tip!
An Angel Comb is a large, glowing plant-fungus structure similar to the pod you interacted with during the prologue, but much bigger, with spiky wing-like protrusions.
Step
What to Do
1
Access NOA inside the Lifepod and read the message titled Anita. This logs Anita's Blackbox location on your HUD, pointing you directly to the Angel Comb.
2
Locate the large glowing Angel Comb above Anita's blackbox. Watch for Hammerheads and Nibbler Mangos patrolling the area.
4
Interact with the central pink bulb to gain the Digestion Adaptation. Your oxygen, health, food, and water are also restored immediately.
Tip!
While you are here, scan the broken Habitat Builder on the table near the Angel Comb. You need two Habitat Builder scans total to unlock the blueprint.
Best Early Foods After Digestion Adaptation
Once Digestion Adaptation is unlocked, the starting biome has plenty to offer in terms of food. Cook before exploring the depths rather than eating raw.
Food
Food
Health
How to Get It
Cooked Geordie
+30
--
Catch Geordies from coral domes. Easiest fish to grab.
Cooked Harvestmoon
+30
--
Catch from schools near the Lifepod. Swim faster to chase them.
Cooked Halfmoon
+25
--
Orange and neon-blue fish near the Lifepod. Easy to spot.
Oily Salad
+20
--
Craft from Fibrous Pulp x2. Cut Whip Gorgon plants with the Survival Multitool.
Nutrient Block
+40
--
Found in supply crates. Does not require the Digestion Adaptation.
Threemoon Temaki
+60
+15
Craft from Halfmoon x1, Harvestmoon x1, Bluemoon x1, Fibrous Pulp x1. Best for long expeditions.
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Access NOA inside the Lifepod and read the message titled Anita. This logs Anita's Blackbox location on your HUD, pointing you directly to the Angel Comb. 
Locate the large glowing Angel Comb above Anita's blackbox. Watch for Hammerheads and Nibbler Mangos patrolling the area. 
Interact with the central pink bulb to gain the Digestion Adaptation. Your oxygen, health, food, and water are also restored immediately. 
Walkthrough (Early to Late-Game)
Plant Farming Guide
Cooking and Recipes Guide
Best Biomods
Best Tadpole Upgrades
Metal Farm Guide
Early Game
Mid-Game
All Leviathans
All Items List
Biomes & PoI List
Blackbox List
Recipe Data Cards (Blueprints)
Vehicle List
Buildings & Facilities List
Salt
Silver
Copper
Lead
Lucifer Rotsac
Conduit Crystals
Creature Enamel
Enameled Glass
Troilite
Celestine
Multiplayer Guide
How to Craft Items
Drinking Water Guide
How to Craft Air Tank?
How to Get Basic Fins
Scanner Station Guide
How to Manage Your Oxygen?
Base Guide
Alien Ruins
How to Use Coordinates
Tadpole Guide
How to Get More Storage
How to Get a Rebreather
Bioscanner Guide
Night Survival Guide
How to Heal
Angel Comb Guide
How to Power Your Base
How to Recharge Batteries and Tools
How to Get the Repair Tool
World Tree Guide
Flashlight Guide
Strong Acid Guide
Specs Requirements
New Game Features
Is There Crossplay?
Supported Devices
Update & Roadmap
How Long to Beat?
Can You Play Subnautica 2 on PS5 and PS4?
Is Subnautica 2 on Xbox?
Is Subnautica 2 on Steam?
