What is functional nutrition? Functional nutrition takes a look at the big picture just like functional medicine. It factors in sleep, relaxation, exercise, nutrition, mental health, toxin exposure, and stress. These things can affect your nutrition status and need to be taken into account when devising individualized nutrition and lifestyle plans. Kate utilizes her dietitian skills to evaluate the person as a whole, accounting for preferences, imbalances, and lifestyle. Above all, Kate can teach you to use food as medicine to enhance your body and mind.