Plant-based athletes can learn to spot gelatin versus HPMC or hypromellose,...

https://bizzmarkblog.com/can-a-supplement-be-vegan-but-still-contain-gluten/

Plant-based athletes can learn to spot gelatin versus HPMC or hypromellose, understand what pullulan means, and see how a batch COA offers extra transparency—making it easier to choose supplements that fit their diet.