[X]Buy a mixture of food to give it a varied diet over the month. You wouldn't like to eat the same thing for a month either.
-[X] You can vary it up a bit with different combinations and styles of milk and potato, to keep it fresh.
-[X] Also make feeding a bit of a game by, say, hiding the food and having him have to find it, to simulate hunting and make the meal more enjoyable.
-[X] Aim to average about 1 meal of nutri-gel (215), 3 of potato(43), and 3 of milk (215) per week, for a total of around ₽473.