The postbiotic Urolithin A, which only some people's gut bacteria can produce from foods like pomegranates, has been shown in studies to increase muscle endurance and fitness levels even without exercise.

The cell walls of dead bacteria in fermented foods like yogurt contain important messages (postbiotics) that living bacteria read to perform their functions, making them just as beneficial as live cultures.

The weed killer glyphosate was patented as an antibiotic and specifically destroys gut bacteria responsible for producing the mood-regulating neurotransmitters serotonin and GABA.

People who live healthily past 95 years old have a unique microbiome capable of metabolizing and breaking down xenobiotics, which are harmful environmental toxins like plastics and chemicals.

Irritable Bowel Syndrome (IBS) can be an autoimmune-like disease of the gut's nerves, triggered by antibodies that the body creates in response to food poisoning.

The hydrogen sulfide form of SIBO (Small Intestinal Bacterial Overgrowth) can be treated with a combination of the antibiotic Rifaximin and bismuth, the active ingredient in the over-the-counter product Pepto-Bismol.

Molecules extracted from 60-million-year-old fossilized soil can provide a stable communication network for cells, allowing them to repair the gut lining and reverse leaky gut caused by chemicals like glyphosate.

The blood-brain barrier is not directly harmed by gluten and Roundup, but it "blows apart" after the gut lining is first exposed to these compounds, showing the gut is the first line of defense.