I actually think food is in a unique position where divulging every last ingredient is the only ethical way to do it. They may only have a current legal obligat

I actually think food is in a unique position where divulging every last ingredient is the only ethical way to do it. They may only have a current legal obligation to disclose known allergens, but that changes, we discover food sensitivities and reactions after things have been in wide use for long periods of time. Trusting the company and the regulatory bodies isn't enough with food. If that means someone else can come along and reproduce it, tough.