Consider you were hosting an eight-month-old baby, an eighty-five-year-old woman, and a twenty-two-year-old man for dinner tomorrow night (I know it’s weird to host a baby for dinner, but bear with me). Would you feed them all a roast lamb entrée? How about a single tall glass of fresh breast milk? My hunch is you would know that each of these humans needs considerably different options for their very different bodies.
