Introduction:
A better understanding of current infant feeding practices and factors influencing them may improve the implementation of infant feeding guidelines in the future.

Aim:
To assess the confidence in knowledge and knowledge of selected infant feeding statements, and to assess selected infant feeding practices among parents of infants aged 4 to 12 months.

Material and methods:
A cross-sectional study was conducted in Poland. Self-selected parents were recruited through the Internet. Data from 6934 responders, almost exclusively (99.2%) mothers, were analysed.

Results and discussion:
Almost 68.8% of mothers assessed their knowledge of infant complementary feeding practices as sufficient. In line with current recommendations, most mothers agreed that fruits are a good source of vitamins for infants (75.3%); and disagreed that fruit juices should be given to infants younger than age 1 year (61.1%); plant-based beverages are an appropriate alternative to breast-milk substitutes for infants (59.9%); potentially allergenic foods should be included into infant diet only after other complementary food had been introduced (68.4%), and, the introduction of other potentially allergenic foods should be delayed, if symptoms following the introduction of a new food occur (55.7%). However, some participants, albeit minority, reported the introduction of plant-based beverages (12.5%), cow’s milk (16.7%), and fruit juices to infants younger than 12 months (15.8%), thus, it was against the current recommendations.

Conclusions:
A discrepancy exists between the confidence in knowledge and knowledge of selected infant feeding statements and feeding practices among Polish mothers of infants aged 4 to 12 months.