A good high-level introduction to how the gut works and its communication network with the brain and other organs. There is some good content on recent discoveries about the gut microbiome, which is another complex matter that scientists are still studying. I’ve learnt rather a lot from this little book with chunk sized topics by reading a page or two every morning. There’s some good guidance for lifestyle choices, some of which I’ve already made with following Zoe (Re: Tim Spector, Kings College London).