Violations in the marketing of milks and complementary foods that compete with breastfeeding in Rio de Janeiro City, Brazil.

Objective: To analyze if milk and complementary foods are being sold under the Brazilian Code of Marketing of Infant and Toddler's Food, Teats, Pacifiers and Baby Bottles (NBCAL), Law 11265/2006 of breastfeeding protection.

Methods: Epidemiological survey that analyzed the marketing practices of pharmacies, supermarkets, and department stores in the Southern region of the city of Rio de Janeiro, Brazil, by direct observation.

Results: Among the 349 stores in Rio de Janeiro's South Region, 339 traded milk and complementary foods and, among them, 60.8% were not complying with NBCAL. Infractions to NBCAL were more common for the selling of milk (58.6%) than complementary foods (22.8%). The most recurrent promotion strategy infringing NBCAL was discount pricing without the Ministry of Health disclaimer.

Conclusions: Most retail stores infringe NBCAL in the commercialization of milk and complementary foods in the city of Rio de Janeiro, Brazil, a violation of the right to information that may impact mothers' choice regarding their child's feeding.