New research revealed that COVID-19 vaccines with mRNA reduce beneficial gut bacteria.
Gastroenterologist Dr. Sabine Hazan found that those who received an mRNA COVID-19 vaccine may lose bifidobacteria levels by 90%.
Bifidobacteria are “among the first microbes to colonize the human gastrointestinal tract and are believed to exert positive health benefits on their host,” according to the National Institutes of Health (NIH).
The bacteria aid the immune system against illness and cancer. Without the presence of bifidobacteria, an individual may experience “inflammatory bowel disease, obesity, neurological disorders, C. diffícile infection and severe COVID-19,” the research states.
The research was conducted by assessing the levels of bifidobacteria in four patients before and after receiving the mRNA vaccine.
One month after being vaccinated, three of the patients saw reduced bacteria levels to 38%, 49%, and 90% of pre-vaccine bifidobacteria amounts.
However, one patient’s bifidobacteria increased by 258% a month after receiving the mRNA COVID-19 vaccine.
Six to nine months after the vaccine, all four of the patients’ bifidobacteria levels dropped to 15%, 0%, 35%, and 60% of pre-vaccine levels.
“Although a small sample, these findings may suggest a potential mechanism for post-vaccination complications; however, no subjects in the study demonstrated significant complications,” the research concluded. “Gut dysbiosis post mRNA SARS-CoV-2 vaccines could potentially be a future indication for restoration of bifidobacteria either orally or directly via fecal transplant.”
