Turkey Giblets are edible but for meat at least they're not very tasty or appetizing so I just throw the Turkey Giblets outside for some animals to get.
I tried the Turkey Giblets once and for me they were not very tasty but some people like them so they cook them and eat them.
The Turkey Giblets if they come with the Turkey would be stuffed inside either a plastic bag or paper bag and placed inside the cavity of the Turkey.
If the Giblets are in paper they can be safely cooked in the Turkey but if they're in a plastic bag they need to be removed from the Turkey before you cook it.