TL;DR: The protein food market is entering its biotech era as companies like Legendary Foods & David use proprietary fat substitutes to create bars, pop tarts & other products with 2x the calories from protein of last-generation brands like Quest and RXBAR. Sacra estimates Legendary Foods generated $123M of revenue through August 2025, on track for $180M for the year, up 63% year-over-year. For more, check out our full report and dataset on Legendary Foods...