Identifies food constituents (macro and micro-nutrients, phytonutrients) that can help prevent or treat disease. Describes how modern processed foods can adversely impact health. Outlines the major benefits of healthy eating related to immune function, aging, gastrointestinal (GI) functions, and cognition. Explains the role of nutrigenomics and personalized nutrition in optimizing gene activity or expression. Describes how nutrition myths, pseudoscience, and an obsession with “clean eating” can compromise health and lead to orthorexia. Outlines how the information in this course can be used to improve patient care outcomes. Describes, based on the information presented, the implications for dentistry, mental health, pharmacy, nursing, dentistry, occupational, and physical therapy, and other health professionals.