Dr. Katarzyna Wolnicka is a specialist in dietetics, author of national dietary recommendations in the form of “A plate of healthy nutrition” and “In 3 steps to health” material. She has co-authored many publications and guides on the role of nutrition in the prevention and treatment of diet-related diseases. For many years, she has been an expert at the Food and Nutrition Institute incorporated into the National Institute of Public Health of the National Institute of Public Health – PIB and coordinator of the National Center for Nutrition Education; head of the Department of Nutrition Education. Among other things, she is involved in the development and dissemination of nutrition recommendations, coordination of nutrition education projects, assessment of nutritional status and diet.