Food labeling is one of the most diverse areas of food law, and special attention is paid to nutrition labeling within this area. This is not a coincidence, as modern nutrition science is evolving year by year, and legal changes must also keep pace with this. Nutrition labeling is particularly important for those who struggle with obesity or certain metabolic diseases or have special nutritional needs for other reasons. In a somewhat unusual way, the regulation of nutrition labeling has not appeared primarily in regulations at the national level, but its development began within an international framework, with the first breakthrough being the Codex Alimentarius and the expert work carried out within it. Hungary has been participating in this work since the beginning, so the Hungarian regulation, regardless of historical periods, has been relatively harmonized with the current best labeling practices in the world, with complete harmonization taking place by the time Hungary was on the verge of joining the European Union. In this study, we look back at the most important international, EU and Hungarian steps in the development of the regulation, not only presenting legal changes, but also comparing them to the changing requirements of the various periods. In addition to the current regulatory environment and challenges for nutrition labeling, key voluntary labeling schemes are also included in this communication.