Bacterial overgrowth may also lead to decreased absorption of certain nutrients, such as folic acid, iron and calcium. (buckinstitute.org)
However, there's some evidence that depression in people with celiac disease is connected to changes in the brain — potentially changes that are triggered because intestinal damage precludes absorption of certain nutrients that are important for brain function. (verywellhealth.com)
Fiber interferes with the function of the replacement enzymes, and it can inhibit absorption of certain nutrients, to boot. (tuftsyourdog.com)