diff -r 872e825623dc code/ryzom/server/src/entities_game_service/player_manager/character.cpp
--- a/code/ryzom/server/src/entities_game_service/player_manager/character.cpp	Fri Jun 04 14:10:13 2010 +0200
+++ b/code/ryzom/server/src/entities_game_service/player_manager/character.cpp	Fri Jun 04 23:54:27 2010 +0300
@@ -5660,7 +5660,7 @@
 			{
 				// Consume to full satiety (last useful unit is entirely consumed)
 				animal.Satiety = animal.MaxSatiety;
-				nbUnits = (sint)((caloriesNeeded / caloriesPerUnit) + 1);
+				nbUnits = (sint)ceil(caloriesNeeded / caloriesPerUnit);
 			}
 			nbItemsLeftToConsume -= nbUnits;