ME/CFS

Three questions people ask, put to Google AI Overviews, Google AI Mode and ChatGPT in November 2026.

Got the NHS facts right

5 of 6

1 didn’t say

Got the NHS facts right

1 of 2

1 didn’t say

Got the NHS facts right

2 of 2

Got the NHS facts right

2 of 2

Got the NHS facts rightNovember 2026

AI Overviews 1 of 2

AI Mode 2 of 2

ChatGPT 2 of 2

History starts when there is a second month to compare. November 2026 is the first.

Cited NHS or accredited sources

5 of 9

3 other UK only1 nothing from the UK

Cited NHS or accredited sources

0 of 3

2 other UK only1 nothing from the UK

Cited NHS or accredited sources

3 of 3

Cited NHS or accredited sources

2 of 3

1 other UK only

Cited NHS or accredited sourcesNovember 2026

AI Overviews 0 of 3

AI Mode 3 of 3

ChatGPT 2 of 3

History starts when there is a second month to compare. November 2026 is the first.

The questions

Question

The NHS says

AI Overviews

AI Mode

ChatGPT

Should I take vitamin B12 or magnesium supplements for ME/CFS?

Insufficient evidence for supplements

●Didn’t say on AI Overviews Google AI Overviews Does not say

---

The NHS says insufficient evidence for supplements

Google AI Mode Matches the NHS

---

The NHS says insufficient evidence for supplements

ChatGPT (logged out) Matches the NHS

---

The NHS says insufficient evidence for supplements

Can I go to the gym to help my ME/CFS?

Avoid vigorous unsupervised exercise

Google AI Overviews Matches the NHS

---

The NHS says avoid vigorous unsupervised exercise

Google AI Mode Matches the NHS

---

The NHS says avoid vigorous unsupervised exercise

ChatGPT (logged out) Matches the NHS

---

The NHS says avoid vigorous unsupervised exercise

Can I start exercising again with long covid fatigue?

No single NHS line

●No UK source on AI Overviews Google AI Overviews No UK source

·

·

Matches the NHS Differs from the NHS

Where the answers came from

Answers, of 9 with sources

NHS websiteNHS4

National Institute for Health and Care Excellence (NICE)UK government3 ME AssociationUK charity2 YouTubeVideo2

BurnoutNutritionWebsite1

BrownpeaUK health company1

Where the answers came from

Answers, of 3 with sources

YouTubeVideo2

BurnoutNutritionWebsite1

BrownpeaUK health company1

YahooUS website1 Living with MEUK charity1

BBodyworks PhysioUnknown1

Where the answers came from

Answers, of 3 with sources

ME AssociationUK charity2

NHS websiteNHS2

National Institute for Health and Care Excellence (NICE)UK government1 SSelf-Care ForumUK charity on the PIF TICK list1

WorkWell FoundationUS website1

Where the answers came from

Answers, of 3 with sources

National Institute for Health and Care Excellence (NICE)UK government2

NHS websiteNHS2

GOV.UKUK government1

University College London Hospitals Cancer ServicesNHS1

World Health OrganizationCH government1

UK charities for ME/CFS ME Association