Episode Notes Felix Salmon , Elizabeth Spiers , and Emily Peck dig into how American dairy farms are being transformed by the protein craze . Formerly a runoff of cheese production, now whey is hot, and cheese farmers are cashing in. Podcast production by Jessamine Molli and Cheyna Roth. This episode is member-exclusive. Listen to it now by subscribing to Slate Plus. By joining, not only will you unlock weekly bonus episodes of Slate Money—you’ll also access ad-free listening across all your