Cited by 794Gut microbiota and healthGastrointestinal motility and disordersAdipokines, Inflammation, and Metabolic Diseases

US immigration westernizes the human gut microbiome

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Vangay, Pajau, Johnson, Abigail J., Ward, Tonya L., Al-Ghalith, Gabriel A., Shields-Cutler, Robin R., Hillmann, Benjamin M., Lucas, Sarah K., Beura, Lalit K. +16 more·2018·Cell

Abstract

Many US immigrant populations develop metabolic diseases post immigration, but the causes are not well understood. Although the microbiome plays a role in metabolic disease, there have been no studies measuring the effects of US immigration on the gut microbiome. We collected stool, dietary recalls, and anthropometrics from 514 Hmong and Karen individuals living in Thailand and the United States, including first- and second-generation immigrants and 19 Karen individuals sampled before and after immigration, as well as from 36 US-born European American individuals. Using 16S and deep shotgun metagenomic DNA sequencing, we found that migration from a non-Western country to the United States is associated with immediate loss of gut microbiome diversity and function in which US-associated strains and functions displace native strains and functions. These effects increase with duration of US residence and are compounded by obesity and across generations.

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Crossref · 10.1016/j.cell.2018.10.029

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  • Westernization of the gut microbiota in U.S. immigrants is accompanied by loss of microbial functions and taxa, deteriorating health markers, increased BMI, and rising inflammatory markers.

    “Rapid “westernization” of the microbiota has been observed in U.S. immigrants, with loss of microbial functions and taxa accompanied by deteriorating markers of host health, increased BMI, and rising inflammatory markers typical in industrialized populations (Vangay et al., 2018; Sonnenburg and Sonnenburg, 2019).”

    From Gut-microbiota-targeted diets modulate human immune status (2021) · cites this paper as Vangay et al., 2018

  • The data suggest that carbohydrate degradation by participants' microbiota was insufficient to process the increased fiber consumption, consistent with analyses of industrialized microbiomes.

    “These data suggest the carbohydrate degradation by participants’ microbiota was insufficient to process the increased fiber consumption, consistent with analyses of industrialized microbiome (Smits et al., 2017; Vangay et al., 2018).”

    From Gut-microbiota-targeted diets modulate human immune status (2021) · cites this paper as Vangay et al., 2018

  • A 2018 study of US first and second-generation immigrants observed loss of fibre-degrading bacterial enzymes that may have been associated with a reduction in dietary fibre consumption after migration from Southeast Asia.

    “A 2018 study of US first and second-generation immigrants were observed to have lost fibre-degrading bacterial enzymes that may have been associated with a reduction in dietary fibre consumption after migration from Southeast Asia [104].”
  • Consumption of Western-style diets rich in processed, fried and sugar-rich foods and low in plant foods with their constituent fiber and polyphenols can lead to the loss of microbial diversity and function as well as the extinction of important beneficial microbes and expansion of opportunistic pathogens.

    “It is evident that the consumption of Western-style diets rich in processed, fried and sugar-rich foods and low in plant foods with their constituent fiber and polyphenols can lead to the loss of microbial diversity and function as well as the extinction of important beneficial microbes and expansion of opportunistic pathogens (13,14), with far-reaching consequences for human health.”
  • Long-term consumption of a Western diet in humans and animals can lead to extinction of beneficial microbes, decrease bacterial diversity, and drive the microbiota to a predominant Bacteroides-driven enterotype.

    “Long-term consumption of a Western diet in humans and animals can lead to the extinction of beneficial microbes, decrease bacterial diversity, and drive the microbiota to a predominant Bacteroides-driven enterotype (13,14,116,88).”

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Authors
Vangay, P., Johnson, A. J., Ward, T. L., Al-Ghalith, G. A., Shields-Cutler, R. R., Hillmann, B. M., Lucas, S. K., Beura, L. K., Thompson, E. A., Till, L. M., Batres, R., Paw, B., Pergament, S. L., Saenyakul, P., Xiong, M., Kim, A. D., Kim, G., Masopust, D., Martens, E. C., Angkurawaranon, C., McGready, R., Kashyap, P. C., Culhane-Pera, K. A., & Knights, D.
Affiliations
  • University of Minnesota (US)
  • Mayo Clinic (US)
  • Macalester College (US)
  • University of Michigan (US)
  • Chiang Mai University (TH)
  • Mahidol University (TH)
Corresponding author
Knights, Dan
Venue
Cell
Publisher
Elsevier BV
Published
2018-11
Volume
175
Issue
4
Pages
962-972.e10
ISSN
0092-8674 (ISSN-L)
OpenAlex
W2899495835
Cited by
794
References
73
Citations by year
2026: 74 · 2025: 97 · 2024: 108 · 2023: 100 · 2022: 111 · 2021: 113 · 2020: 112 · 2019: 69 · 2018: 9
FWCI
27.56
Type
journal article
Language
en
Open access
Locations
  • Cell (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • University of Minnesota Clinical and Translational Science Institute
  • University of Minnesota Healthy Foods, Healthy Lives Institute
  • Office of Diversity
  • Graduate School at the University of Minnesota
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Gut microbiota and health
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
Keywords
gut microbiota, immigration, Westernization, metabolic disorders, Hmong people, Karen, microbiome diversity, obesity, intergenerational transmission, host-microbe interactions
MeSH terms
Gastrointestinal Microbiome, Adult, Bacteroides, Dietary Fiber, Emigration and Immigration, Humans, Obesity, United States, Prevotella, Asian People, Emigrants and Immigrants, Metagenome

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