FOOD | What happens when Joe Wicks goes on a fibre fast? Featuring Dr Megan Rossi

We all know that our diet has a huge impact on our bodies – but what else might it be doing to us? To find out what our gut microbiome does to our moods and energy levels – and how important the gut-brain connection really is – Joe goes on a three-day low-fibre diet, tracking his mood, energy levels, blood sugar and even his stools. Joined by leading dietitian and nutritionist Dr Megan Rossi, Joe explores the hidden world of our gut, how the trillions of tiny bacteria living there affec...