Background: Rational nutrition management in infants under 3 years is an important part of their adequate development at this age and in future. Objective: Our aim was to evaluate awareness of pediatricians and parents concerning rational nutrition management in infants under 3 years. Methods : 300 pediatricians and 300 parents of infants under 3 years who live in Moscow, Ivanovo, and Yaroslavl were enrolled in pilot survey. Results: Pediatricians' recommendations on child nutrition management satisfied the majority of parents (252; 84%), however, less than half of families (135; 45%) followed them. In other cases the child's ration depended on mother's opinion on the matter (96; 32%) and on child's food preference. «Unhealthy» food such as groceries and provision, processed food, spices, seafood, fast food, chocolate, candies, and sweets as well as soda was included in child's ration at the age of 2 and its consumption frequency increased significantly at the age of 3. Pediatricians strongly recommended special dairy for infants from the age of 1 (known as the 3rd formula). In fact, only half of children in Moscow eat them, and 27–30% of children in Ivanovo and Yaroslavl. Conclusion: Harmful breach of nutrition management in infants under 3 years is detected. Evidently, parents are not competent on the question. Optimization of educational activities performed by pediatricians, medical stuff, and mass media is required.