In 2010, a researcher was pouring over research data when he discovered something he thought was odd: His data showed that at 6 months of age, formula-fed babies born of mothers who were categorized as medically obese weighed about 5% units less fat than breastfed babies in the same dataset. That discovery struck him as unusual and led him on a research journey to better understand breast milk. Now, he’s studying the connections between maternal gestational diabetes, breastfeeding and infant health.