Use to have very irregular constipated bowls despite hydration, now take enzymes &probotics and no more bloat/constipation/irregularity, why is that?

Unsure: Without knowing the details of your problem and supplements, it is impossible to tell what has caused your improvement. However, I am happy that you have found a regimen which seems to work for you. In general, an increased amount of fiber helps. Be wary of interactions between medications and supplements, be sure to tell your doctor what's supplements you're taking at any visit. Good luck.