For those with IBS or other digestive symptoms, taking a probiotic supplement or eating fermented, probiotic-rich foods sounds like a great idea. After all, we know how important having a healthy and diverse microbiome is to our gut, and overall health. But probiotics don’t initially work for a number of my clients and can often make symptoms worse in the short-term for those with significant gut dysfunction or bacterial dysbiosis. So, what are the side effects of probiotics and what should you do if probiotics are making your IBS symptoms worse?!