This article examines whether sucralose, a popular artificial sweetener, is bad for people with Irritable Bowel Syndrome (IBS). It explores scientific findings on sucralose's effects on gut motility, microbiome, and IBS symptoms, highlighting that while sucralose is low-FODMAP and generally safe in moderation, individual sensitivities and limited human data warrant caution. Alternatives and practical advice for IBS management are also discussed.