diff --git a/behaviours/eater.gd b/behaviours/eater.gd
index 2ff657c..472fbe8 100644
--- a/behaviours/eater.gd
+++ b/behaviours/eater.gd
@@ -1,18 +1,20 @@
 extends Area2D
 class_name Eater
 
+## Emits [signal eaten] whenever an [Edible] body with an acceptable [field Edible.diet] enters the given [CollisionShape2D].
+
 
 signal eaten(edible: Edible)
 
 
-@export var tag: StringName
+@export var acceptable_diets: Array[StringName] = []
 
 
 
 func _on_body_entered(body: Node2D) -> void:
 	var edibles: Array = body.find_children("Edible", "Edible", false, false)
 	for edible in edibles:
-		if edible.tag == tag:
+		if edible.diet in acceptable_diets:
 			eaten.emit(edible)
 			edible.eat()
 
diff --git a/behaviours/edible.gd b/behaviours/edible.gd
index ee8847a..c18b046 100644
--- a/behaviours/edible.gd
+++ b/behaviours/edible.gd
@@ -1,13 +1,15 @@
 extends Node
 class_name Edible
 
+## Emits [signal eaten] when eaten by an [Eater] whose acceptable diets contain this node's [field diet].
+##
+## To add multiple possible [Edible] diets to an entity, add multiple [Edible] nodes to it.
 
 signal eaten
 
 
+@export var diet: StringName = &""
+
+
 func eat():
 	eaten.emit()
-	get_parent().queue_free()
-
-
-@export var tag: StringName