Evidence map›Paper›PMID 42647493›Full record

ArticlePloS one2026

Cacao in the Mississippian World: Archaeogenomic evidence for T. cacao consumption at the Etowah Site, Georgia.

Adam King, Terry G Powis, Xavier Argout, Hélène Vignes, Jose Utge, Bénédicte Rhoné, Olivier Fouet, Nilesh W Gaikwad, Claire Lanaud

Abstract readHistorical Article
In one paragraph

Article in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Adam KingUniversity of South Carolina, Columbia, South Carolina, United States of America.ORCID https://orcid.org/0000-0001-5368-2453
Terry G PowisKennesaw State University, Department of Geography and Anthropology, Kennesaw, Georgia, United States of America.
Xavier ArgoutCIRAD, AGAP Institut, Montpellier, France.
Hélène VignesCIRAD, AGAP Institut, Montpellier, France.
Jose UtgeUMR 7206 Eco-anthropologie, Département Homme et Environnement, MNHN-CNRS-Université Paris Cité, Paris, France.
Bénédicte RhonéCIRAD, AGAP Institut, Montpellier, France.
Olivier FouetCIRAD, AGAP Institut, Montpellier, France.
Nilesh W GaikwadGaikwad Steroidomics, LLC., Davis, California, United States of America.
Claire LanaudCIRAD, AGAP Institut, Montpellier, France.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The discovery that people living at the great Ancestral Pueblo site of Chaco Canyon consumed cacao changed our understanding of the history of chocolate by demonstrating that networks moving cacao reached beyond Central and South America north at least into the American Southwest. Until now, clear evidence that people of the equally impressive Mississippian civilization east of the Mississippi River consumed chocolate has been lacking. This study presents the first evidence that cacao consumption was part of the Mississippian world at roughly the same time as it appeared at Chaco. We present evidence that samples from two Etowah Complicated Stamped pottery sherds recovered from 11th to 12th century contexts at the Etowah site in the modern state of Georgia contained highly fragmented ancient Theobroma cacao DNA. Etowah is an Indigenous city located in the modern US state of Georgia that, at its peak in the 14th century, was one of the most important centers in the Mississippian world. Two centuries before that peak, Etowah's inhabitants began construction of the site's first earthen platform mound, excavating earth and filling the borrow pits with feasting remains. Our evidence for cacao consumption comes from these early feasting contexts. This discovery at Etowah asks us to broaden our understanding of the networks that distributed cacao throughout the Americas before European colonization.

Indexed as

ArchaeologyCacaoDNA, PlantGeorgiaHumansDNA, Plant

Identifiers

PMID42647493
PMCPMC13514064

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.