Objective : Analyse the breakfast cereal market to help to help healthcare professionals to guide parents in choosing healthy products for their children. Study design : Observational study of the breakfast cereals available in the biggest supermarkets, discount stores and organic chains in France, Belgium and Luxembourg. Methods : An analysis of nutritional qualities using three indicators: Nutri-Score (initial and modified version), WHO Europe nutrient profile model, and Nova. Results : 645 products were listed; 559 excluding duplicates. A total of 28.8% are marketed to children and make up the group of “children’s” cereals, 62.1% of cereals are Muesli, Oats and other cereal flakes (MOCF), and 54.9% are “organic”. The study shows that “children’s” cereals have a poorer nutritional profile: a higher proportion of Nutri-Score D, higher sugar content, lower fibre content, less conformity with the WHO Europe nutrient profile model and a higher proportion ofultra-processed. On the other hand, MOCF and “organic” products generally have a better nutritional profile: less sugar, more fibre, more Nutri-Score A, less Nutri-Score D and fewer ultra-processed products. Conclusions : Parents should therefore opt for cereals that do not bear any reference to children on the packaging.