Name: Good Bacteria Against Breast Cancer and IBS
Uploaded: 2026-02-11T17:20:10.000Z
Description: How beneficial bacteria can help counter breast cancer and improve skin and emotional health.

Brendon Fallon is the host and executive producer of NTD's "Vital Signs," a health show that zooms in on the important matters of health that come up in everyday life—connecting the dots across the broad canvas of our holistic wellbeing.


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How beneficial bacteria can help counter breast cancer and improve skin and emotional health.

Watch our exclusive episode, only on <a href="https://www.ntd.com/vital-signs" target="_blank" rel="nofollow noopener">NTD</a>.

“Ladies with breast cancer have much more in the way of fecal microbes [than those without breast cancer],” says cardiologist and leading voice on gut health Dr. William Davis.

An NIH-funded <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/ijc.33473" target="_blank" rel="nofollow noopener">study</a> in Ghana is one of a number that show a link between fecal microbes and breast cancer.

The ascension of fecal microbes from the colon, which is structured to house them, and into the small intestine, which is not, is known as small intestinal bacterial overgrowth (SIBO).

The toxic compounds released by trillions of fecal microbes—as they die at a rapid pace–enter the bloodstream, says Dr. Davis.

This endotoxemia is higher in women with breast cancer, he adds.

How could endotoxemia and the abnormal processing of estrogen that stems from SIBO raise breast cancer risk?

Dr. Davis returns to Vital Signs with Brendon Fallon to reveal the broad impact of a disrupted microbiome—from raising cancer risk to causing wrinkles and obesity—and to pinpoint the microbes that can restore balance.

The microbiome—spanning the nasal cavities, mouth, respiratory, reproductive, urinary, and digestive systems—includes trillions of fungi, bacteria, and other microbes. Enough of the good bacteria is needed to keep SIBO in check, says Dr. Davis.

“Lactobacillus reuteri and Lactobacillus gasseri take up residence [in the small intestine] and then produce bacteriocins—natural antibiotics effective against fecal microbes,” he says.

Dr. Davis reveals the beneficial microbes that help manage breast cancer risk and other women’s health issues in “Menopause and the Microbiome PART 1.”

Watch “Menopause and the Microbiome PART 2” here soon <a href="https://bit.ly/VitalSignsB" target="_blank" rel="nofollow noopener">bit.ly/VitalSignsB</a> on testing for SIBO and making yogurt to restore gut balance.

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Related/Referenced studies:

Analysis of the effect of hyaluronic acid on intestinal flora and its metabolites in diabetic mice via high-throughput sequencing and nontargeted metabolomics
<a href="https://doi.org/10.1016/j.jff.2023.105496" target="_blank" rel="nofollow noopener">https://doi.org/10.1016/j.jff.2023.105496</a>

Role of Gut Microbiota Dysbiosis in Breast Cancer and Novel Approaches in Prevention, Diagnosis, and Treatment
<a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8405251/" target="_blank" rel="nofollow noopener">https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8405251/</a>

Associations of fecal microbial profiles with breast cancer and nonmalignant breast disease in the Ghana Breast Health Study
<a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/ijc.33473" target="_blank" rel="nofollow noopener">https://onlinelibrary.wiley.com/doi/abs/10.1002/ijc.33473</a>

Breast cancer patients from the Midwest region of the United States have reduced levels of short-chain fatty acid-producing gut bacteria
<a href="https://doi.org/10.1038/s41598-023-27436-3" target="_blank" rel="nofollow noopener">https://doi.org/10.1038/s41598-023-27436-3</a>

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Vital Signs’ host, guests, and contributors offer general information on improving health and wellness. This is not intended as diagnosis or medical advice. You should consult your medical doctor or holistic doctor before enacting any suggested strategies for health and wellness improvement, including those in relation to preventing or treating specific diseases featured on this program.

Views expressed in this video are opinions of the host and guests, and do not necessarily reflect the views of NTD.

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