The certification mark, as used by persons authorized by the certifier, certifies that the services provided are provided by a practitioner who has completed the Nutritional Therapy Association's specialized education in the areas of nutrient-dense food, lifestyle choices, culinary wellness, client consultation, and social and personal influences on health, as well as techniques and technology for assessing the body's needs for support and nourishment through the Functional Clinical Assessment , and the Nutritional Therapy Association's practice standards and ethical guidelines.