The Indonesian Food and Drug Administration (BPOM) has introduced more stringent oversight of health supplements containing probiotics with new guidelines that require clinical trials for certain products and expanded documentation standards. BPOM Regulation No. 17 of 2025 replaces the previous 2021 regulation and establishes a comprehensive framework for evaluating probiotic strains used in health supplements. Assessment Requirements The new regulation expands the scope of assessment to include not only categorization and documentation but also technical procedures, strain classification, and clinical trial requirements. Unlike the previous regulation, which provided general guidance, the updated framework creates a comprehensive system for evaluating both registered probiotic strains and new or combined strains. Manufacturers must now submit supporting documentation covering strain identification and functional characterization, safety, efficacy, and product quality. The previous regulation required documentation only on safety, efficacy, and quality. Clinical Trials One of the most significant changes is the requirement for clinical trials conducted in Indonesia for applications that include benefit claims other than maintaining digestive health, or where there are modifications to benefit claims. The regulation specifies that phase 1 trials must demonstrate safety, while phase 2 trials must validate efficacy using statistically valid methods such as double-blind, randomized, placebo-controlled studies). In addition, phase 3 and phase 4 trials may be required, and postmarket surveillance data must be submitted. Technical Assessment Framework Annex 4, a newly introduced section, establishes technical procedures for assessing health supplements containing probiotics in Indonesia. This comprehensive framework outlines criteria for evaluating new probiotic strains, including strain identification, functional characterization, safety, efficacy, and product quality. The annex introduces a clear classification of claims for health supplement products containing probiotics: General claims(e.g., maintaining digestive health). Functional claims(e.g., normal biological function or activity in the body). Risk reduction claims(e.g., lowering disease risk). The regulation restricts use of the term