I’M GONNA GIVE YOU THE COLORING BOOK VERSION........(IN OTHER WORDS “KISS” (Keep It SImple Stupid)...Some folks are prone to stones, period.....ok...now put that aside...MANY people in the south east part of the US have issues with stones (and P2 is from the South East)...This is also due to the extremely high mineral count in the water...which makes the stones....South Carolina and that region is notorious for high minerl content in the water, ergo more stones....
Also, get your calcium from food only. Don’t take calcium pills. My only stone was from those chewable cal mg pils. NEVER AGAIN.