For those with lower baseline diversity, a gradual increase in fiber intake, possibly combined with the introduction of fiber-degrading microbial species, might be necessary to achieve desired health benefits.

…a specific gut bacterium, Oscillibacter, metabolizes cholesterol, reducing heart disease risk.

In the early 2000s, while studying cholera, Dr. Fasano made a startling discovery—a protein called zonulin. Zonulin functions as the gatekeeper of the intestinal barrier, controlling the tight junctions between cells in the gut lining. This discovery was a ...