FMI indicates the prebiotic ingredient sector was valued at USD 7.7 billion in 2025 and is projected to reach USD 8.2 billion in 2026 and USD 15.7 billion by 2036, expanding at a CAGR of 6.7% during the forecast period; inulin is expected to lead with a 46% ingredient share in 2026, while Functional Food & Beverages dominate applications with a 63% share in 2026.