Sources
49%
of unbranded health answers cite NIH/PubMed
Research anchors health answers
nih.gov is the most-cited domain in the whole dataset, and academic and research sources make up 17% of healthcare citations.
Industries / Healthcare
Healthcare
Health answers are the most evidence-led in the dataset. PubMed-indexed research anchors half of them.
391k
AI answers analysed
89%
Answers citing sources
8.0
Sources per answer
30%
Largest source type
Brand & corporate
Brand & corporate
Three things to know
Engines
47%
of Google AI Overviews health answers cite YouTube
Google adds video to medicine
AI Mode cites YouTube in 39% of health answers and ChatGPT in just 3%. Patient and clinician video is a real input to Google’s answers.
Markets
20%
of UK health answers cite NHS.uk
Local health systems lead locally
Diabetes UK follows at 10%. In Germany, NIH research (25%) and the pharma association vfa.de (19%) lead. National bodies frame local answers.
Healthcare in AI search
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