Journal
OBESITY
Volume 24, Issue 6, Pages 1213-1221Publisher
WILEY
DOI: 10.1002/oby.21519
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Funding
- CMRI Metabolic Research Program
- CMRI Chickasaw Nation Endowed Research Chair in Pediatric Diabetes
- NORC T32 grant - NHLBI [T32HL105349]
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ObjectiveThis narrative review examines six important non-nutritive substances in breast milk, many of which were thought to have little to no biological significance. The overall objective is to provide background on key bioactive factors in breast milk believed to have an effect on infant outcomes (growth and body composition). MethodsThe evidence for the effects of the following six bioactive compounds in breast milk on infant growth outcomes are reviewed: insulin, leptin, adiponectin, ghrelin, interleukin-6, and tumor necrosis factor-. ResultsThe existing literature on the effects of breast milk insulin, ghrelin, interleukin-6, and tumor necrosis factor- and their associations with infant growth and adiposity is sparse. Of the bioactive compounds reviewed, leptin and adiponectin are the most researched. Data reveal that breast milk adiponectin has negative associations with growth in infancy. ConclusionsThere is a need for innovative, well-designed studies to improve causal inference and advance our understanding in the effects of breast milk and its components on offspring growth and body composition. The recommendations provided, along with careful consideration of both known and unknown factors that affect breast milk composition, will help improve, standardize, and ultimately advance this emergent field.
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