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Up to 50% of patients with irritable bowel syndrome (IBS) choose to use complementary alternative medicine (CAM) due to a high level of dissatisfaction with conventional treatments. CAM includes techniques aimed at the body and mind (relaxation, meditation, yoga), some mechanical interventions (physical activity, reflexology, osteopathy, acupuncture), directed psychological interventions (hypnosis, mindfulness-based cognitive therapy), and nutritional approaches (herbs, low- FODMAP diet, and probiotics). All CAM have been evaluated in studies of varying quality with—for some but not all—positive clinical findings in terms of reducing IBS severity and improving quality of life. The aim of this review is to present the results and limitations of these techniques in order to encourage their use in a new holistic therapeutic approach to IBS.