You don't need FDA pre-market approval for the selling of food. It depends on the additives added to said food. But, I have no idea why anyone would want something that looks like Pepto Bismol. Yuck.
The many ways FDA is responsible for protecting the public health.
www.fda.gov
The FDA approves food additives in food for people.
Although the FDA does not have premarket approval of food products, it has the authority to approve certain ingredients before they are used in food or intended to contact food. Those include food additives (substances added intentionally to food, as well as substances that migrate to food from food contact products such as food packaging), and color additives.
Companies that want to add new food additives to food are responsible for providing the FDA with information demonstrating that the additives are safe. FDA experts review the results of appropriate tests done by companies to ensure that the food additive is safe for its intended use. An approved food additive must be used in compliance with its approved uses, specifications, and restrictions.
Certain food ingredients, such as those that are considered “generally recognized as safe” (GRAS) for their intended conditions of use by scientific experts, do not require premarket approval by the FDA. The FDA has a voluntary notification process under which a manufacturer may submit a conclusion that the use of an ingredient is GRAS.
The FDA doesn’t approve the food label, including the Nutrition Facts label.
The FDA does not approve individual food labels before food products can be marketed. But FDA regulations require specific labeling elements, including nutrition information, to appear on most foods, including dietary supplements. Also, any statements on food products must be truthful and not misleading – and must comply with any regulatory requirements for the type of statement, as applicable.
Manufacturers must provide the serving size of the food and specified information about the nutrient content of each serving on the “Nutrition Facts” label (or on the “Supplement Facts” label for dietary supplements).