Food As Medicine: Cleveland Clinic's Dr. Mark Hyman Preaches a Dietary Prescription for Health Ideastream Public Media goop Gwyneth Paltrow x Mark Hyman: How We Vote with Our Forks Who is Dr. Mark Hyman? Glutathione is such a critical soldier in our line of defense that our bodies make it themselves. We even have mechanisms that recycle and reuse it. But what happens when our toxic 94 Mark Hyman, M.D.: The impact of the food system on our health and the environment Peter Attia