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Sayer Ji

Questions · GreenMedInfo

Is GreenMedInfo legit?

Short answer

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 October 15, 2026, it reports 28,227,600 studies indexed in total, 455,768 linked to a substance or condition, and 109,812 curated by its editors, across 10,244 health topics (greenmedinfo.com). It is a curated index, not a systematic review, so read each study before relying on it.

What it is

GreenMedInfo organizes the research literature by substance and condition. Each entry shows the study’s abstract and links to its PubMed record, so readers can open the original and judge it for themselves. The earliest archived capture of the site is from March 26, 2009; its library has grown from about 23,000 research articles in 2016 to the figures above.

The GreenMedInfo home page, showing a search box for 10,244 health topics and counters reading 109,812 studies curated by its editors, 455,768 studies linked to a substance or condition, and 28,227,600 studies indexed in total.
The GreenMedInfo home page on October 15, 2026.

How it is funded

The site describes itself as ad-free and supported by its members (GreenMedInfo About). It earns revenue from memberships, donations and product sales. GreenMedInfo is owned by Sayer Ji; see the disclosures.

What critics say

The main criticism is selection. In 2019 McGill University’s Office for Science and Society called GreenMedInfo “a highly selective slice of the biomedical literature, biased toward positive results for natural ingredients,” citing a search on homeopathy for allergic rhinitis that returned five favorable abstracts against 66 results in PubMed (McGill OSS). The same article said the site’s research dashboard “appears to be up to that task” of organizing the literature. Fact-checkers have also rated individual GreenMedInfo articles false or misleading; those are listed on the controversy page.

The selection is deliberate and disclosed: editors choose studies that bear on natural interventions, to surface research the founder considers under-covered. That is an editorial method, not a claim to represent all of PubMed.

How to use it well

  1. Open the PubMed record, not just the summary.
  2. Check whether the study was done in people, animals or cells, and how many participants it had.
  3. Look for the study design: a randomized trial or meta-analysis carries more weight than a case report.
  4. Remember the index is curated toward natural interventions, so search PubMed too for the full picture.
  5. Talk to a clinician before acting on any of it. Nothing on GreenMedInfo or this site is medical advice.

Sources

Facts on this page are dated and linked to their sources. Errors are corrected and logged on the corrections page. Last reviewed October 15, 2026.