Rabbit Stew not giving enough hunger?

Now this isn't really a bug but I doesn't really make any sense.

So Rabbit Stew gives back 10 hunger and 12 saturation.
While if you ate all of the crafting recipes separately it would give you
13 hunger and 15.6 saturation. So can you please make it give you 14 hunger and 16 saturation for the rabbit stew so you actually get a profit?