The REAL Butter Act would require clearer labeling of lab-created butter products to help consumers make informed choices. Under the bill, any butter product made through synthetic processes that don't use traditional agricultural sources of milk fat would need to be clearly labeled as "lab-created butter" or marked as "contains lab-created butter" on its packaging. This amendment to the Federal Food, Drug, and Cosmetic Act distinguishes lab-created butter from traditional butter, which must meet specific standards set by a 1923 federal law. The bill does not include specific funding or implementation timelines. Introduced in June 2026, the legislation was referred to the House Committee on Energy and Commerce.