Why Nourishing Foods Can Suddenly Feel Like the Enemy Fermentation, Histamine & OAT Why Nourishing Foods Can Suddenly Feel Like the Enemy I see this a lot: fermented foods once helped, and then one day they suddenly seem to make everything worse. If that’s you, you’re not failing, or “doing it wrong”. You’re also not obliged to choose between two exhausting extremes: ferment everything forever, or fear almost everything you eat. Many people arrive in my practice feeling itchy