The global soy isoflavones market is estimated to be worth USD 20.7 billion in 2025 and is projected to reach a value of USD 34.4 billion by 2035, expanding at a CAGR of 5.7% over the assessment period. The healthcare products application segment is expected to dominate with a 34% share in 2025, while genistein is expected to lead the product type segment with a 40% share.