Purpose: The aim of the study was to identify consumption patterns among children. It was also crucial to determine the conditions influencing the behaviour of young consumers in the market. Design/methodology/approach: The paper uses a critical analysis of the literature and survey research based on a prepared questionnaire. The survey was conducted among 1326 children in age groups from 9 to 15 years old. The questionnaire consisted of two parts, i.e. the substantive part and the respondents’ particulars. The first part of the questionnaire contained a set of questions concerning e.g. children’s ability to identify products with better environmental parameters, behaviours related to nutrition, saving, shopping, spending free time, waste management and implementing pro-ecological solutions in their households. Findings: The research showed a relatively good knowledge of the basic principles of sustainable consumption and labelling of organic products among children. This picture is somewhat simplified. The results of the study also showed that for many children healthy eating still means only eating fruit and vegetables (leaving aside the issues of regularity and portions of meals, drinking the right amount of water or maintaining a balanced diet). Practical implications: Modification of curricula in primary school to a greater extent emphasizing content related to the principles of sustainable consumption. It is important to increase the amount of information provided on the principles of proper nutrition. This knowledge should be comprehensive and coherent, and not only refer to individual aspects of a healthy lifestyle. It is necessary to involve whole families in such activities through workshops, meetings and other events, because as shown by this research, but also the professional literature, attitudes and skills in children are transmitted and consolidated in this way. Social implications: Shaping sustainable consumption patterns among children. Originality/value: The article provides up-to-date knowledge on consumption patterns in the area of food products functioning among children. This is particularly important in the context of the need to build sustainable consumption patterns among the surveyed group of market participants. Keywords: sustainable consumption, food products, a child as a consumer, food market, ecolabelling. Category of the paper: Research paper.