Yes, you read that correctly.
To make it even more clear, when a foreigner who comes from a country that still eats in the way they always have, and is not physically influenced by the Western world comes to the US multiple changes happen. These changes affect all racial groups, a few more than others.
The changes include loss of gut microbiome, the increases of schizophrenia in which no schizophrenia was within that persons/family history and other physical and psychological issues begin to develop! And the longer they are here in the US the more these symptoms and associated problems increase.
It may very be. I can tell you that research regarding the microbiome is exploding! Moreover, the microbiome in humans has been associated with heart disease, inflammatory disease and mental illnesses.
How much all of this has to do with the microbiome being abused by diet, chemicals, and drugs so it can’t work properly.
The journal article here:
Highlights – Loss of diversity increases with obesity and is compounded across generations
Summary – 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.
Citation: US Immigration Westernizes the Human Gut Microbiome Pajau Vangay Abigail J. Johnson Tonya L. Ward Purna C. Kashyap Kathleen A. Culhane-Pera Dan Knights Cell Published: November 1, 2018 DOI: doi.org/10.1016/j.cell.2018.10.029
A theory is that the US food supply is laced with antibiotics and pesticides that kill gut bacteria. Also people may be adopting a diet with more meat than vegetables and gut bacteria prefer vegetables. Glyphosate, the main synthetic herbicide, which most GE crops are engineered to withstand, has a negative impact on the types of bacteria that colonize the fiber rich digestive track.
Just to add a bit more about dangerous of GMO Crops.
There was recently a report that colon cancer rates have exploded in Brazil since the dawn of their GMO agriculture sector. The GMO’s in Brazil go to feed the cows which Brazilians then eat, which is one cause of colon cancer. Brazil only recently started eating the amount of meat they have been eating when prior vegetables and fruit were the most available foods, again, animal product consumption which we know causes colon cancer.
I did see another recent post about (breakfast) cereals which have ‘more weedkiller than vitamins’. And lets not even mention ‘preservatives’ in everything that also destroy the ecosystem of your gut.
These effects increase with duration of US residence. Loss of diversity increases with obesity and is compounded across generations.
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.
Previous work has established that diet and geographical environment are two principal determinants of microbiome structure and function (
The United States hosts the largest number of immigrants in the world (49.8 million or 19% of the world’s total immigrants and approximately 21% of the US population) (
). Refugees, in particular, appear to be more vulnerable to rapid weight gain (Heney et al., 2014,Hervey et al., 2009), with Southeast Asian refugees exhibiting the highest average increases in body mass index (BMI) after relocation to the United States (Careyva et al., 2015). The Hmong, a minority ethnic group from China who also reside in Southeast Asia, make up the largest refugee group in Minnesota (22,033 total refugees as of 2014) (Minnesota Department of Health, 2017,Pfeifer and Thao, 2013). The Karen, an ethnic minority from Burma, have been arriving in large numbers in more recent years (Minnesota Department of Health, 2017). Overweight status and obesity rates are highest among Hmong and Karen compared to other Asian ethnic groups in Minnesota (