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

Is Tapioca Starch, 10 oz. by Unpretentious Baker, Also Called Tapioca Flour, Gluten Free, Vegan, Kosher, Cornstarch Replacement, Thickener, Gluten Free Baking, Resealable Bag Pescatarian?

Yes! The manufacturer claims that this product is vegan, making it suitable for pescatarian eaters as well.
Pescatarian? Tapioca Starch, 10 oz. by Unpretentious Baker, Also Called Tapioca Flour, Gluten Free, Vegan, Kosher, Cornstarch Replacement, Thickener, Gluten Free Baking, Resealable Bag | Spoonful