Vitamin and mineral content for cat food doesn't exist, just Crude Ash % (which is the % of vitamins and minerals after incineration). I found a whole metric fuckton of vetmed papers detailing the minimum requirements for cats, but no packaging has a breakdown of what vitamins and minerals they contain.
I don't want to google every bloody ingredient.
Interestingly, Fancy Feast and Purina are much more transparent than Dine or Fussy Cat. Thanks Nestle, I guess lol