Nutritional therapy aims to strengthen the body's natural defenses by adopting approaches to modifying eating behavior . Its objective is to optimize a diet focused on long-term health and to address deficiencies in essential nutrients. The nutritional advice provided aims to prevent and treat certain conditions or diseases, slow the aging process, and promote good health over time .

During a personalized interview, questions such as food choices, the importance of adequate protein intake, balanced fat intake, preference for certain carbohydrates, the need to avoid vitamin and mineral deficiencies, and recommended cooking methods can be discussed.

By making informed food choices, cells and organs acquire the elements necessary for optimal function. Foods thus become "nutraceuticals," rich in active ingredients to produce the desired beneficial effects.