Questions
Questions about Sayer Ji
Straight answers to what people search for, each with its sources, including the criticism. If something here is wrong, the corrections page says how to report it.
- Who is Sayer Ji?Sayer Ji is an American author and investigative journalist. He founded GreenMedInfo, an open-access index of peer-reviewed natural-health research, in 2008, and the…
- Sayer Ji’s education and credentialsSayer Ji holds a Bachelor of Arts in philosophy from Rutgers University (1995), where he studied phenomenology and the philosophy of science. He is not a physician and holds no…
- Sayer Ji and the controversy: the misinformation claims, examinedIn March 2021 the Center for Countering Digital Hate (CCDH) named Sayer Ji one of a “Disinformation Dozen” it said produced most anti-vaccine content in a sample of…
- Is GreenMedInfo legit?GreenMedInfo is a real, long-running research index founded by Sayer Ji in 2008. It links peer-reviewed PubMed studies to the foods, nutrients and botanicals they test. As of…
- Sayer Ji’s parents: Dr. Sungchul Ji and Dorothy JiSayer Ji’s parents are Dr. Sungchul Ji and Dorothy Ji. His father is a theoretical cell biologist who has taught at Rutgers University since 1982 and is now professor…
- Does Sayer Ji sell supplements?Yes. In June 2026 Sayer Ji founded Regenerate Company, which sells four dietary supplements that it says are made from fermented, whole-food sources. He created the products and…
- Sayer Ji’s nationality and heritageSayer Ji is American. On his father’s side he is of Korean descent: his father, Dr. Sungchul Ji, studied engineering at Seoul National University before coming to the United…
- Sayer Ji’s net worth: what is actually publicThere is no reliable public figure for Sayer Ji’s net worth. He is a private individual who does not publish personal financial statements, and the numbers on net-worth…
- Sayer Ji on black seed oilSayer Ji’s best-known writing on black seed (Nigella sativa, the source of black seed oil) is “Black Seed: ‘The Remedy for Everything but Death,’”…
- Sayer Ji’s Epstein files reportingIn January 2026 the Justice Department published nearly 3.5 million pages of Epstein records, with more than 2,000 videos and 180,000 images. Since February 2026 Sayer Ji has…
- Sayer Ji’s official websites and accountsSayer Ji’s official website is sayerji.com. His writing is on Substack, his research index is GreenMedInfo, and his coalition is Restore the First. The full list of official…
- Criticism of Sayer Ji: the articles, and what has changed sinceSayer Ji has been criticized by fact-checkers, a university science office, an advocacy group and several news outlets, most of it in 2020 and 2021 around COVID-19 vaccines. Much…