A supplement can look plant-based until you check the capsule shell: gelatin...

https://mighty-wiki.win/index.php/Is_Shellac_the_Same_Thing_as_Confectioners%E2%80%99_Glaze%3F

A supplement can look plant-based until you check the capsule shell: gelatin comes from animals, while HPMC offers a plant-derived alternative. And “vegan” may sound definitive, but federal rules don’t define the claim for supplements