The vagus nerve is responsible for the regulation of all our internal organ functions. When it is damaged, the wide-ranging impact on our nervous system can manifest in a multitude of ways, including anxiety, hormonal imbalances, gastrointestinal distress, and vertigo. Based on current research into the vagus nerve and vagus nerve stimulation, this practical guide addresses a crucial missing link in healthcare and functional medicine by providing an innovative protocol on the management of anxiety and vagus nerve dysfunction through nutrition, exercise, and lifestyle. With a holistic, whole-person approach, this protocol bridges the divide between the physical and the psychological, providing a holistic approach that can be applied widely across various disciplines within healthcare, bodywork, and mental health. It provides detailed theory and is supplemented with an abundance of practical guidance including various recipes whilst also helping practitioners understand how clients may transition to a more sustainable, long-term protocol.