diff --git a/data/json/items/comestibles/carnivore.json b/data/json/items/comestibles/carnivore.json
index 34da1017f88f7..0c4bb99065028 100644
--- a/data/json/items/comestibles/carnivore.json
+++ b/data/json/items/comestibles/carnivore.json
@@ -1346,34 +1346,39 @@
     "price": "0 cent",
     "material": [ "bone" ],
     "weight": "1000 g",
-    "flags": [ "RAW", "NUTRIENT_OVERRIDE", "INEDIBLE", "LUPINE" ]
+    "flags": [ "RAW", "INEDIBLE" ]
   },
   {
     "type": "COMESTIBLE",
     "id": "bone",
     "name": { "str": "bone" },
     "copy-from": "bone_abstract",
-    "weight": "225 g",
+    "weight": "290 g",
+    "volume": "320 ml",
+    "longest_side": "44 cm",
+    "//1": "Values based roughly on a male human femur",
     "symbol": "%",
     "description": "A bone from some creature or other.  Could be used in cooking and crafting.",
     "price_postapoc": "10 cent",
     "milling": { "into": "meal_bone", "recipe": "meal_bone_mill_1_4" },
-    "volume": "250 ml",
-    "longest_side": "40 cm",
-    "vitamins": [ [ "calcium", 96 ] ]
+    "vitamins": [ [ "calcium", "77140 mg" ] ],
+    "//2": "Roughly calculated raw calcium amount in 290g of bone tissue, with the assumption that 66.5% of bone weight is hydroxyapatite, and 40% of hydroxyapatite is calcium (in reality it's ~200/502, but it's safe to round down) putting the calcium content at roughly 26.6% of bone weight.",
+    "melee_damage": { "bash": 3 },
+    "to_hit": { "grip": "none", "length": "short", "surface": "any", "balance": "uneven" },
+    "extend": { "flags": [ "LUPINE" ] }
   },
   {
     "type": "COMESTIBLE",
     "id": "large_bone",
     "name": { "str": "large bone" },
     "weight": "20 kg",
+    "volume": "36 L",
+    "longest_side": "2 m",
     "symbol": "I",
     "description": "A huge bone of a large creature.",
     "copy-from": "bone_abstract",
     "price_postapoc": "20 cent",
     "//": "While it would make sense to be able to mill it, the bone won't fit into a mill...",
-    "volume": "36 L",
-    "longest_side": "2000 cm",
     "to_hit": { "grip": "bad", "length": "short", "surface": "any", "balance": "clumsy" },
     "vitamins": [ [ "calcium", 13824 ] ],
     "melee_damage": { "bash": 15 }