Pets tend to eat different Food. But it is safe to assume that S.N.A.R.G will eat the same types of food as you do. They will of course be happier eating some things more than others.
You must ensure your pet is well fed and does not drop to the state of ‘Starving’ apart from being cruel this may cause the Snarg to attempt to escape or simply be removed from your care by the society for the protection of space critters.
It has also been know for Snarg to help themselves to food if they are left to their own devices and become hungry.
Food fed to your pet is normally shown from the ‘Feed Pet’ option in your Pet Status screen and will filter from items stored in your Ships Cargo bay.