Description

Infant weaning refers to the transition from a diet based solely on milk (breast milk or formula) to a diversified and complete diet, given by the presence of all foods introduced through complementary feeding.

The onset of weaning is influenced by several factors that contribute to the infant's autonomy, such as proper neuromotor development, development of taste and personal inclinations, maturation of kidney and gastrointestinal function, and social and socioeconomic factors.1 This gradual process can last from a few months to a couple of years.

There are different types of weaning, which vary according to traditions, ethnicity and scientific currents. These include traditional weaning or TSF, Baby-led Weaning (BLW) and Baby-led introduction to solids (BLISS).

TSF consists of the introduction of complementary feeding including solid or semisolid type foods served in the form of spoon puree and specially prepared foods for children with suggested doses, composition, quantities, and schedules.

BLW or autodiving refers to a type of complementary feeding introduction in which the infant can control the process from the beginning, setting the pace according to his or her appetite. The introduction of food is dictated by the infant's interest in food and his or her ability to self-feed small portions of food normally taken during family meals. For this purpose, the infant sits at the table with family members and takes food portions of a size and texture proportionate to his or her neurodevelopment and acquisition. The infant may feed independently with or without the aid of cutlery.

BLISS is a modified form of BLW that has implemented arrangements aimed at preventing foreign body inhalation. This modified version includes the start of weaning at the age of 6 months, coupled with general advice and rules specifically created to reduce the risk of choking. Pediatricians of free choice (PLS) play a key role in the implementation of weaning, in terms of providing advice on the different modes and food selection and preparation.

Benefits and risks related to different types of weaning BLW reduces the risk of eating disorders, facilitates the transition to the family diet, and incentivizes the family to follow a balanced diet.

This practice promotes the infant's adaptation to different food textures and tastes, speeds up learning to chew, development of fine motor skills, and overall maturation of the child, and is not correlated with poor infant staturo-ponderal growth. Although this approach has many advantages, a theoretical concern, relates to its safety and the possible increased risk of choking and inhalation from EC. There are conflicting data in the literature; some studies point to a likely reduction in the risk of choking due to an increase in gagging, which would lead to regurgitation of food rather than inhalation of food. In fact, BLW is an approach in which the infant tends to assume a more appropriate posture and is focused on actively chewing foods, unlike traditional weaning in which he or she receives, in a more relaxed position, foods served in pureed form that are directly swallowed without being chewed. So, according to some authors, traditional weaning would stimulate the infant's chewing ability less and increase the risk of inhalation compared with BLW. According to other authors, children following a BLISS-type weaning method accompanied by advice to minimize choking risks do not have a higher risk of inhalation than children following traditional weaning. This would show that the safety of TSF and BLISS may be comparable. In light of these observations, it is of particular interest to investigate this topic further given the absence of sufficient evidence in the literature that has clarified the relationship between these issues and weaning patterns.