Digestion aids—spanning probiotics, digestive enzymes, prebiotics, and herbal bitters—are formulations that support gastric motility, nutrient breakdown, and microbiome balance, making them a cost-effective lever for managing the global surge in IBS, bloating, and GERD. The Digestion Aids market size is valued at US$14.7 billion in 2025 and is on a robust growth outlook, underpinned by a 2026-2033 market forecast CAGR of 6.8% that will push industry expansion past US$26 billion by 2033. Scope includes OTC capsules, functional foods, and Rx combinations sold through pharmacies, e-commerce, and practitioner channels; synonyms such as gut-health supplements, gastrointestinal therapeutics, and digestive remedies are consolidated within our coverage.