You nailed it with the sock comment-my dog would choose laundry over kibble any day! From what I’ve read, most commercial kibble needs those added vitamins because the manufacturing process zaps a lot of the natural nutrients. So, the fortification isn’t totally “sparkle-dust,” but yeah, anything above the required levels just gets peed out. Honestly, as long as the food is AAFCO-approved and your pup looks and acts healthy, you’re probably good. Just don’t let him swap it for the glow-in-the-dark sock!