Yes! The manufacturer claims that this product is vegan, making it suitable for pescatarian eaters as well.

Is Bitter Blocker - Non-GMO & Natural Sugar Flavor Taste Modifier - Product of USA (5 kg (11 lb)) Pescatarian?

Yes! The manufacturer claims that this product is vegan, making it suitable for pescatarian eaters as well.
Pescatarian? Bitter Blocker - Non-GMO & Natural Sugar Flavor Taste Modifier - Product of USA (5 kg (11 lb)) | Spoonful