# Xand van Tulleken

An episode of [The Waterstones Podcast](https://invisiblenetwork.ai/podcast/1374190347), 9 Sep 2026, 41 min.

Audio: https://anchor.fm/s/3734fbc/podcast/play/123860749/https%3A%2F%2Fd3ctxlq1ktw2nl.cloudfront.net%2Fstaging%2F2026-7-6%2F429343282-44100-2-11c7a0b9c6aa9.mp3

50% of people in the UK take supplements and the consumer blood-testing industry is now a $128 billion business. But does any of it work? In an increasingly confusing world Xand van Tulleken wanted to cut through the noise to sort fact from fiction. Two years later, his new book, Make Me Well, shares the results. We sat down with him to discover what wellness means, what works (and what doesn't) and why for most people the real benefits might be found elsewhere entirely.

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