Sen.

Elizabeth Warren (D-Mass) has criticized the vertical integration in the U.S. healthcare system, arguing that it leads to higher costs for patients and increased profits for large corporations.

Warren took to X on Sunday and used UnitedHealth Group Inc.

(NYSE:UNH) as an example of a company that controls multiple aspects of healthcare, including insurance, pharmacies, and providers.

She argued that this consolidation leads to higher costs for patients while increasing corporate profits.