One of these is gluten-free soy sauce, which replaces soy and wheat with peas. Another is halal soy sauce, in which they modified the fermentation process to inhibit alcohol production.
but it's likely that most of the dishes you love eating at home only require a small amount of those costly ingredients - such as gluten-free soy sauce, gluten-free plain flour or cornflour (for ...
you could replace it with tofu or just have more vegetables. To make this stir-fry gluten-free, use rice noodles and replace soy sauce with tamari sauce.