History & lost civilizations
Mertz death from vitamin-A poisoning
historical medical hypothesisEvidence status
Retrospective diagnosis; disputed
A 2022 toxicology paper supports this interpretation; symptoms were not uniquely diagnostic and a 2005 reappraisal disputed it.
Editorial assessment of this proposition; not a numeric confidence score.
Claim or proposition being examined
Cleland and Southcott proposed that dog-liver vitamin A toxicity caused the expedition illness and Mertz’s death.
Limitations
No contemporary biochemical testing; not medical advice or a proven diagnosis.
Catalog review date reported: 2026-10-28. This is inherited catalog metadata, not a new verification of the linked source.
Xavier Mertz, circa 1911, in a portrait reproduced in Mawson’s 1915 expedition account. Documentary identification only: this portrait does not establish a cause of death, a clinical diagnosis, or the cannibalism allegation.
Unknown photographer, circa 1911. Reproduced in Douglas Mawson, The Home of the Blizzard, William Heinemann, 1915, volume 1, plate opposite p. 246; State Library of New South Wales Q 989.8/M, via Wikimedia Commons. Public domain.
Photographer unknown: do not attribute to Hurley or Mawson. This is a pre-illness portrait, not a medical record or a depiction of the survival journey. Full source photograph retained.
Image source record · Reuse terms
Image rights and evidence limits
Public domain: Australian photograph published before 1956; publication in 1915 also places this edition in the US public domain.
Image existence does not prove a linked claim. Consult image-specific captions and reuse conditions.
Sources and what they support
Links document the record, the claim’s circulation, an assessment, or reuse terms as labeled. A source link is not automatically corroboration.
- claim provenance and/or documented assessmenthttps://pubmed.ncbi.nlm.nih.gov/36286587/
- assessment/contexthttps://www.mja.com.au/journal/2005/183/11/mawson-and-mertz-re-evaluation-their-ill-fated-mapping-journey-during-1911-1914
- image reproduction provenance; not proof of a linked interpretationhttps://commons.wikimedia.org/wiki/File:Xavier_Mertz.jpg
- image reuse conditionshttps://commons.wikimedia.org/wiki/File:Xavier_Mertz.jpg#Licensing
Explore the same topic
- Alternative history
Ancient sea kings surveyed Antarctica
Early-map interpretation does not establish the proposed civilization.
- alternative geological history
Antarctic separation caused by an attack on Earth
The comment provides no dating, crater evidence or physical mechanism sufficient to establish the proposed event.
- Alternative history
Antarctica was Atlantis
No authenticated Antarctic archaeology establishes that identification.
- Retrospective medical-history hypothesis
Anthrax caused Edgar Evans’s death
The diagnosis is inferred from historical descriptions rather than microbiological confirmation.
Browse History & lost civilizations Open the original vault record