--- a/data/json/items/comestibles/carnivore.json
+++ b/data/json/items/comestibles/carnivore.json
@@ -381,7 +381,8 @@
     "cooks_like": "mutant_meat_scrap_cooked",
     "proportional": { "price_postapoc": 0.2, "calories": 0.5 },
     "vitamins": [ [ "mutant_toxin", 2 ] ],
-    "delete": { "flags": [ "SMOKABLE" ] }
+    "delete": { "flags": [ "SMOKABLE" ] },
+    "extend": { "flags": [ "BAD_TASTE" ] }
   },
   {
     "id": "mutant_human_flesh",
@@ -1237,7 +1238,8 @@
     "description": "A chunk of raw fat butchered from a heavily-mutated animal.  It smells, if anything, even more disgusting than the rest of the mutant.  There are little puddles of unidentified oils dripping from it.",
     "looks_like": "fat",
     "proportional": { "price": 0.2 },
-    "vitamins": [ [ "mutant_toxin", 360 ] ]
+    "vitamins": [ [ "mutant_toxin", 360 ] ],
+    "extend": { "flags": [ "BAD_TASTE" ] }
   },
   {
     "id": "mutant_tallow",
@@ -1247,7 +1249,8 @@
     "description": "A smooth white block of cleaned and rendered fat, sourced from a mutant animal.  It will remain edible for a very long time, and can be used as an ingredient in many foods and projects.",
     "looks_like": "tallow",
     "proportional": { "price": 0.2 },
-    "vitamins": [ [ "mutant_toxin", 180 ] ]
+    "vitamins": [ [ "mutant_toxin", 180 ] ],
+    "extend": { "flags": [ "BAD_TASTE" ] }
   },
   {
     "id": "mutant_lard",