Goat whey protein
Uses it40-50 g in morning shake; he named Mount Capra or Naked Goat
He uses regeneratively raised goat whey as the protein base of his morning shake, naming Mount Capra or Naked Goat as the products.
Source: The Real Life Diet of Longevity Doctor Mark Hyman, Who Developed a Six-Pack in His 60s (GQ via Yahoo) (interview, 13 Feb 2024)