Disturbances of diet during pregnancy and early postnatal life may impact colonization of gut microbiota during early life, which could influence infant health, leading to potential long-lasting consequences later in life. This is a nonsystematic review that explores the recent scientific literature to provide a general perspective of this broad topic. Several studies have shown that gut microbiota composition is related to changes in metabolism, energy balance, and immune system disturbances through interaction between microbiota metabolites and host receptors by the gut-brain axis. Moreover, recent clinical studies suggest that an intestinal dysbiosis in gut microbiota may result in cognitive disorders and behavioral problems. Furthermore, recent research in the field of brain imaging focused on the study of the relationship between gut microbial ecology and large-scale brain networks, which will help to decipher the influence of the microbiome on brain function and potentially will serve to identify multiple mediators of the gut-brain axis. Thus, knowledge about optimal nutrition by modulating gut microbiota-brain axis activity will allow a better understanding of the molecular mechanisms involved in the crosstalk between gut microbiota and the developing brain during critical windows. In addition, this knowledge will open new avenues for developing novel microbiota-modulating based diet interventions during pregnancy and early life to prevent metabolic disorders, as well as neurodevelopmental deficits and brain functional disorders.
While a wide knowledge exists on the effects of breast milk or infant formula on growth and infant development, less attention has been paid to the importance of complementary feeding (CF). This review focuses on current recommendations for optimal introduction of CF in healthy full-term European infants and discusses the potential impact of this type of feeding on health outcomes. Overall, exclusive breastfeeding is recommended at least for 4 months and preferable for 6 months, followed by the introduction of CF alongside breast milk; infants’ nutrient requirements must meet the differences between nutrients provided by breast milk and the estimated total needs. There is growing evidence that healthy feeding practices during the CF period have positive short- and long-term effects on optimal growth, body composition, neurodevelopment, healthy food preferences, and gut microbiota composition and function; adequate and healthy CF may also diminish the risk of infections, allergies, type 1 diabetes mellitus, as well as celiac and non-communicable diseases. Following the expert recommendations, the design of nutritional strategies must encourage parents to provide a healthy lifestyle for their offspring. Future research should aim to optimize timing, content, and methods of CF; furthermore, it is necessary to explore future CF-targeted health-promoting strategies in early life (appetite regulation, eating patterns, eating behavior, gut dysbiosis, etc.) to prevent growth/obesity outcomes, immune system related-diseases or non-communicable diseases in later life.
Postnatal nutrition is essential for growth and neurodevelopment. We analyzed the influence of a new enriched-infant formula with bioactive compounds on growth, neurodevelopment, and visual function (VF) in healthy infants during their first 18 months of life. A total of 170 infants were randomized in the COGNIS randomized clinical trial (RCT) to receive a standard infant formula (SF = 85) or a new experimental infant formula supplemented with functional nutrients (EF = 85). As a control, 50 breastfed infants (BF) were enrolled. Growth patterns were evaluated up to 18 months of life; neurodevelopment was assessed by general movements at 2, 3, and 4 months; VF was measured by cortical visual evoked potentials at 3 and 12 months. No differences in growth and neurodevelopment were found between groups. Regarding VF, SF and EF infants presented prolonged latencies and lower amplitudes in the P100 wave than BF infants. In the EF group, a higher percentage of infants presented response at 7½'of arc at 12 months compared to 3 months of age; a similar proportion of BF and EF infants presented responses at 7½'of arc at 12 months of age. Early nutritional intervention with bioactive compounds could narrow the gap in growth and neurodevelopment between breastfed and formula-fed infants.
Type of feeding during early life influences growth trajectory and metabolic risk at later stage of life. Modifications in infant formulas composition have led to evaluation of their effects on growth and energetic efficiency (EE) compared to breastfeeding. Aim: To analyse type of feeding potential effects during first months of life, plus its EE, on growth patterns in healthy formula fed [standard (SF) vs. enriched (EF)] and breastfed infants (BF) participating in the COGNIS RCT up to 18 months of age. Methods: Infants follow-up to 18 months of age (n=141) fed with a SF (n=48), a bioactive nutrients-enriched infant formula (EF, n=56), or BF (n=37), were assessed for growth parameters using WHO standards. Growth velocity and catch-up were calculated to identify growth patterns. EE of breast milk/infant formula was also estimated. Results: Infants’ growth at 6 months showed higher length and lower HC gains in SF and EF infants than BF infants. Both Weight-for-length and Weight-for-age catch-up growth, showed significant differences in formula fed groups compared to BF. No significant differences in growth velocity or catch-up were found at 6-12 and 12-18 months. Regarding EE, infant formula groups showed significantly lower weight and length gains/gram of milk-protein, and higher weight and length gains/gram of milk-lipids, than BF infants. Conclusion: Growth velocity during first 6 months, which may be influenced by feeding, seems to be the main predictor of subsequent growth trajectory. Breastfeeding may have positive effects on growth programming due to the EE of its nutrients.
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