The International Scientific Association for Probiotics and Prebiotics (ISAPP) is a non-profit, international organization that advances the science of probiotics, prebiotics, synbiotics, and related microbiome-directed ingredients. It brings together academic experts and industry scientists to evaluate evidence, clarify concepts, and promote rigorous research and responsible use of these ingredients across food, supplement, and healthcare applications.
ISAPP is known for convening scientific meetings, fostering collaboration, and publishing consensus definitions and guidance that are widely cited by researchers, regulators, and healthcare professionals. Its work helps establish standards for evidence, safety, and efficacy; informs product development and substantiation; and supports clear communication on mechanisms and health outcomes. Through position papers, educational resources, and engagement with stakeholders, ISAPP contributes to the consistent, science-based understanding of probiotic and prebiotic ingredients used in consumer products and clinical practice.
