If you’ve found yourself scrolling through the breastfeeding world online, you know that people have a lot of strong opinions about breast milk. But what exactly do we know about the biology of it?

Human breast milk is uniquely adapted to meet an infant’s nutritional needs. Surprisingly, we still know very little about how milk is even made in the breast. A team of ETH Zurich researchers led by ...

‘Milk is more unique than a fingerprint,’ says Katie Hinde, an associate professor at Arizona State University who studies lactation.Illustration: The Metropolitan Mueseum of New york People have used ...

There is nothing more basic or human than a mother breastfeeding her baby. But perhaps because of the thousands of parenting books and magazine articles, delivering conflicting ideas on breastfeeding, ...