Besides aiding regular bowel movements, what is the secondary digestive function of fiber in cauliflower?

Acting as a prebiotic, feeding the beneficial bacteria in your gut microbiome.

The high fiber content is a cornerstone of cauliflower's health benefits for the digestive system, primarily by ensuring regularity and preventing constipation through improved transit time. However, fiber also performs a crucial symbiotic role by functioning as a prebiotic. Prebiotics are specialized types of dietary fiber that are not digested by human enzymes but instead serve as a primary food source for the trillions of beneficial microorganisms residing in the gut microbiome. A thriving gut microbiome is increasingly linked to positive influences on broader health markers, including mood regulation and overall immune system strength.