Gut immunity enzymes sales will expand through 2036, with powder at 37.5% of product type sales, microbial at 35.0% within the source segment and beverages at 41.5% of the application category in 2026. The market was valued at USD 393.1 million in 2025 and is forecast to record a 9.4% CAGR between 2026 and 2036.