Given what we’re learning about the impact of gut microbiome on CNS, immune system, and other systems I wonder if the GI effect is it, but with secondary effects related to activity of bacterial colonies.
Gut biome is insanely important, I've had digestive issues for over a year and it's been depressing that they couldn't find the cause.
I finally gave up waiting and decided to experiment myself, started drinking a yakult every morning and last thing at night, within two weeks things started... Moving and now 6 weeks in its like it used to be, bloatings gone, regular as clockwork, energy levels are up and I generally feel better.
I still have other issues that are more serious but the medication handles those ok.
I started taking vitamin D a few weeks before that as well and that seemed to help as well.