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Baby-Led Weaning: What Role Does It Play in Obesity Risk during the First Years? A Systematic Review
Nazareth Martinón-Torres1,2, Nathalie Carreira1,2, Rosaura Picáns-Leis3
1Unit of Pediatric Gastroenterology, Hepatology and Nutrition, Pediatric Service, University Clinical Hospital of Santiago (CHUS), 15706 Santiago de Compostela, Spain.
Insights
Baby-led weaning (BLW) may influence infant weight gain, but current evidence is inconclusive. More research is needed to determine if BLW reduces obesity risk compared to traditional spoon-feeding methods.
Area of Science:
- Pediatrics
- Nutrition Science
- Public Health
Background:
- Childhood obesity is a growing pandemic, necessitating early intervention strategies.
- The first 1000 days of life are critical for establishing healthy eating habits.
- Baby-led weaning (BLW) is an emerging feeding method with potential health implications.
Purpose of the Study:
- To compare infant weight gain between BLW and traditional spoon-feeding.
- To assess the potential of BLW in reducing childhood obesity risk.
Main Methods:
- Systematic review following PRISMA guidelines.
- Searched major databases: Pubmed, Web of Science, Embase, and Cochrane Library.
- Included eight studies with 2875 infants (2 RCTs, 6 observational).
Main Results:
- Findings on BLW's effect on infant weight gain were indecisive.
- Some studies suggested lower weight gain with BLW, while others were inconclusive.
- Included studies had moderate to high risk of bias.
Conclusions:
- Current evidence is insufficient to recommend BLW over spoon-feeding for obesity prevention.
- Further high-quality clinical trials and prospective studies are required.
- Optimal weaning practices for long-term health remain to be determined.
Abstract:
Childhood is a window of opportunity for the prevention of the obesity pandemic. Since "the first 1000 days of life" is a period in which healthy eating habits must be acquired, it should be the target for preventive strategies. Baby-led weaning (BLW) is an emergent way of weaning that could influence children's health. The nutrition committees of the main pediatric societies affirm there is not enough evidence to support which is the best method of weaning. The aim was to determinate the influence of BLW on the infant's weight gain compared to the traditional spoon-feeding, and to assess if it could decrease the risk of obesity in children. A systematic review was conducted, following the PRISMA method. Pubmed, Web of Science, Embase, and Cochrane Library were searched. Out of 747 articles, eight studies (2875 total infants) were included (two randomized control trials, 6 observational studies). Results were indecisive, while some studies seem to demonstrate lower weight gain in infants that apply BLW, others show inconclusive results. The risk of bias in all included studies was moderate or high. In conclusion, more clinical trials and prospective studies should be done prior to providing a general recommendation about the best method of weaning to reduce the risk of obesity.
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