Individuals run snack bars and have their own recipes, which are not protected by law.

If only you know your formula, it's a trade secret. As long as you don't tell others, others won't know, and you can't infringe your rights. However, if you register as a major, it is protected by law, but your formula will be made public, and someone will infringe your rights, but it is also difficult for you to defend your rights. Think for yourself.