Nutritional psychiatry is the use of healthy whole foods and nutrients, using evidence-based research, to improve and support mental well-being. Nutritional psychiatry is a nascent field that emerged in the last decade alongside the understanding of the gut microbiome in relation to how food and nutrients can impact mental health. Physicians who studied prior to around 2006 may not have learned much about the microbiome, yet this field of research has burgeoned to the point that it is astounding. The premise of nutritional psychiatry is that a sound diet can help treat and prevent a wide range of psychological and cognitive health issues from ADHD to anxiety, depression, brain fog, and others. Nutritional Psychiatry complements other treatments like medications and different forms of therapy, and is a low–hanging fruit given that eating is something we all do every single day.