Got milk? When it comes to building strong bones, you shouldn’t just stick to the dairy aisle—but many people are starting to skip it all together, with a demonic narrative evolving around milk in recent years. So which should we believe? To find out, Jen travels to the hills of Mongolia to learn all about lactase and breaks down the basics of what makes bones weak, and where to find the key ingredient to make them stronger (spoiler: it’s not in your grocery cart). Read the full text transcript for this episode at go.ted.com/BSTscript4