> You realized that most of the vitamins we get from a meat-based diet are in the food because we feed the multivitamins to the animals? It is just an unnecessary layer of indirection added.

How does that work, I wonder? Did ancient humans first start feeding their domestic animals multivitamins because they realised there weren't enough in meat? Do modern sub-saharan pastoral nomads feed their domestic animals multivitamins to avoid deficits?

Or is yours a statement that only applies to a restricted geographical locality and practice of meat production? What do you think?