MAC's Cat 6 x 800g

When my cats first moved in years ago, I tried several brands and have stuck with this one ever since. They always eat it well, except when they have tummy troubles ;). If I gave them the recommended amount of food, my cats would probably be meowing at me all day out of hunger, but they're also young, active, and playful (indoor cats). The batches often vary a bit; slight deduction because sometimes there was a different unchopped organ included (stomach?).