Alfredo Darrington Bowman (26 November 1933 – 6 August 2016), better known as Dr. Sebi (/seɪbiː/), was a Honduran self-proclaimed herbalist and healer, who also practiced in the United States for a period in the late 20th and early 21st centuries. Bowman claimed to cure all disease with herbs and a vegan diet based on various pseudoscientific claims, and denied that HIV caused AIDS. He set up a treatment center in Honduras, then moved his practice to New York City and Los Angeles. Numerous entertainment and acting celebrities were among his clients, including Michael Jackson, Lisa ‘Left Eye’ Lopes, and John Travolta.