Megan Rossi, PhD, RD

PhD in gut health and registered dietitian (APD), Research Fellow at King's College London, with peer-reviewed research on prebiotics, probiotics and fiber diversity. Author of Eat Yourself Healthy and Love Your Gut, known as The Gut Health Doctor. Disclosed commercial interest: she founded Bio&Me, a gut-health food and supplement brand; this is a direct commercial conflict of interest in the space she writes about, and her content here is graded against the published trial evidence, never against her own product line.