diff --git a/src/main/kotlin/com/steelextractor/SteelExtractor.kt b/src/main/kotlin/com/steelextractor/SteelExtractor.kt
index 8c6e07f..6075f27 100644
--- a/src/main/kotlin/com/steelextractor/SteelExtractor.kt
+++ b/src/main/kotlin/com/steelextractor/SteelExtractor.kt
@@ -42,6 +42,7 @@ import com.steelextractor.extractors.PoiTypesExtractor
 import com.steelextractor.extractors.Potions
 import com.steelextractor.extractors.StatTypeRegistryExtractor
 import com.steelextractor.extractors.StructureStarts
+import com.steelextractor.extractors.SuspiciousStewEffects
 import com.steelextractor.extractors.Tags
 import com.steelextractor.extractors.Waxables
 import kotlinx.io.IOException
@@ -218,6 +219,7 @@ object SteelExtractor : ModInitializer {
         addUnlessDisabled("BLOCK_ENTITIES") { BlockEntities() }
         addUnlessDisabled("DATA_COMPONENTS") { DataComponents() }
         addUnlessDisabled("ITEMS") { Items() }
+        addUnlessDisabled("SUSPICIOUS_STEW_EFFECTS") { SuspiciousStewEffects() }
         addUnlessDisabled("PARTICLE_TYPES") { ParticleTypeRegistryExtractor() }
         addUnlessDisabled("POSITION_SOURCE_TYPES") { PositionSourceTypeRegistryExtractor() }
         addUnlessDisabled("VILLAGER_TYPES") { VillagerTypeRegistryExtractor() }
diff --git a/src/main/kotlin/com/steelextractor/extractors/SuspiciousStewEffects.kt b/src/main/kotlin/com/steelextractor/extractors/SuspiciousStewEffects.kt
new file mode 100644
index 0000000..2d7ab2e
--- /dev/null
+++ b/src/main/kotlin/com/steelextractor/extractors/SuspiciousStewEffects.kt
@@ -0,0 +1,40 @@
+package com.steelextractor.extractors
+
+import com.google.gson.JsonArray
+import com.google.gson.JsonElement
+import com.google.gson.JsonObject
+import com.mojang.serialization.JsonOps
+import com.steelextractor.SteelExtractor
+import net.minecraft.core.registries.BuiltInRegistries
+import net.minecraft.resources.RegistryOps
+import net.minecraft.server.MinecraftServer
+import net.minecraft.world.item.component.SuspiciousStewEffects as VanillaSuspiciousStewEffects
+import net.minecraft.world.level.block.SuspiciousEffectHolder
+
+/** Extracts the effect lists returned by vanilla `SuspiciousEffectHolder` items. */
+class SuspiciousStewEffects : SteelExtractor.Extractor {
+    override fun fileName(): String {
+        return "steel-registry/build_assets/suspicious_stew_effects.json"
+    }
+
+    override fun extract(server: MinecraftServer): JsonElement {
+        val registryOps = RegistryOps.create(JsonOps.INSTANCE, server.registryAccess())
+        val holders = JsonArray()
+
+        for (item in BuiltInRegistries.ITEM) {
+            val effectHolder = SuspiciousEffectHolder.tryGet(item) ?: continue
+            val itemKey = BuiltInRegistries.ITEM.getKey(item)
+            val holderJson = JsonObject()
+            holderJson.addProperty("item", itemKey.toString())
+
+            val effectsJson = VanillaSuspiciousStewEffects.CODEC
+                .encodeStart(registryOps, effectHolder.suspiciousEffects)
+                .getOrThrow()
+
+            holderJson.add("effects", effectsJson)
+            holders.add(holderJson)
+        }
+
+        return holders
+    }
+}