For example, if a food company was required to share that their food was made of cloned meat or contained GMOs (genetically modified organisms), then consumers would become extremely paranoid and a bigger craze than the gluten fad would occur. If it was mandated that companies must share specific information, then that information could drastically change the audience of consumers, would could end up for the worse and put companies out of business in some cases.
A company, regardless of how long they have been in business, should never give public or private information to consumers. Every information, whether it is not private or not, should be kept in confidentiality. This is to ensure that employees, employers or consumers are protected and still have their rights as Americans.
A company should not have the power to decide what information to give consumers because they have no right to give the consumers less or false information. All the people want is the money and they don't think about how it is effecting the environment and the people around them.