“If someone has colitis, it is likely their bowel bacteria are messed up or missing.”
Not necessarily. That is a too broad of a generalization. Colitis can also be caused by CNS activation (”nerves”) and various inflammatory syndromes from microglia releasing inflammatory chemicals on up.
—> CNS activation (”nerves”) and various inflammatory syndromes from microglia releasing inflammatory chemicals
I could theorize how each of those could be activated by poor flora.