---
title: "What AI cites on a health question"
description: "Top US health sources cited by AI: Cleveland Clinic, Mayo Clinic, the CDC, and the other health domains in the ranking."
canonical: https://shoutrank.com/data-studies/us-health-sources
markdown: https://shoutrank.com/data-studies/us-health-sources.md
---

# What AI cites on a health question

Top US health sources cited by AI: Cleveland Clinic, Mayo Clinic, the CDC, and the other health domains in the ranking.
Clinical and government hosts are separated from the general ranking so this chart is the health cut.

Updated October 8, 2026. United States.

This data is accumulated from multiple sources and internal training data, which helps us get the client cited.

## This chart

| Domain | Mentions | Google | ChatGPT | Share |
| --- | ---: | ---: | ---: | ---: |
| clevelandclinic.org | 45k | 43k | 1,504 | 18.3% |
| mayoclinic.org | 41k | 39k | 2,584 | 16.8% |
| cdc.gov | 36k | 32k | 4,152 | 14.6% |
| healthline.com | 26k | 25k | 1,576 | 10.8% |
| goodrx.com | 26k | 26k | 256 | 10.6% |
| webmd.com | 22k | 22k | 720 | 9.1% |
| medicalnewstoday.com | 16k | 16k | 632 | 6.7% |
| medlineplus.gov | 16k | 15k | 904 | 6.6% |
| pmc.ncbi.nlm.nih.gov | 16k | 16k | 368 | 6.5% |

Perplexity and Gemini are not in this ranking. An AI Overview coverage rate is not published here as if it were measured.

## This chart is the source for

- [Healthcare](https://shoutrank.com/industries/healthcare.md)
- [Telehealth](https://shoutrank.com/industries/telehealth.md)

## Questions on US health sources

### Does this page recommend a treatment?

No. It counts which health domains are cited. It is not medical advice and it does not rank clinical quality.

### How often does this update?

The date on the page is the day this ranking was last updated.