Being a cannibal is not the easiest thing you can do in Fallout 4, although it can be very helpful and provide you with some… resources you wouldn't usually get from the game. While playing you will be able to eat various human races (Caucasian, African American, Hispanic and Asian) and a series of monsters ranging from Ghouls to Super Mutants.
The best "cuts of meat" are Sweet Breads (aka Kidneys), Shank (Calfs), Ribs, Gummies (Ears) and Liver. This is what you need in terms of S.P.E.C.I.A.L. stats to start with cannibalism:
As for the first perks, the things you need to do first is to bring Charisma to 10 so you can unlock the Indimation perk and Strength to 3 for Blacksmith melee weapon modifications. Then you can get these perks in the order you prefer:
The best weapons for your cannibalism purposes are Ripper, Butcher Clever and Kitchen Knife, although there's a chance you might be willing to have a more classic approach with Power Fist, Brass or Spiked Knuckles, Bare Fists. Be careful as you don't want to be caught while having your… meal.
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