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- Pediatric Nutrition, Immune Health, Digestive Health, Microbiome, Human Milk Oligosaccharides, Nucleotides, Immune-Modulating Milk Components -


Rachael Buck, PhD, is a senior research fellow at Abbott and works on the forefront of infant nutrition. As a discovery scientist in the field of immune health, Rachael studies the components of breast milk to help Abbott nutritionists develop infant formulas that are as close as possible to breast milk. She helps design clinical trials to study the effects of these nutrients on babies’ development in the first year of life.

Rachael leads Abbott’s pioneering research program for human milk oligosaccharides (HMOs). HMOs are beneficial prebiotics found in breast milk that help support immune and gut health. Clinical research on HMOs has demonstrated improved immunity benefits similar to breast-fed infants.

Rachael joined Abbott in 1995 and over her career, she has received numerous prestigious awards for her research on nucleotides, pediatric immunity and HMOs. She was also named a Senior Research Fellow for her pioneering work. She has authored more than 50 publications and has over 120 granted patents. She is a Fellow of the American Institute for Medical and Biological Engineering and is a member of the American Association of Immunologists. Rachael received her PhD degree in immunology from the University of Cambridge, U.K. and BSc (1st Class Honors) from the University of Ulster, U.K.