Restaurant chains that use artificial coloring or flavorings or ingredients that have been altered to make them less desirable must disclose that, too.

The rules are part of a major new federal regulation designed to protect consumers from misleading or deceptive labeling and to make it easier for consumers to compare products.

The Federal Trade Commission’s proposed rules will make it clearer that a restaurant’s food labeling should include information that helps consumers make an informed decision about the product.

The new rules also require companies that make restaurant products to give consumers information about how artificial ingredients are used and whether they are safe for children under 12.