Not sure if it did or didn't trigger it, all I know about 20 min after eating I get the indigestion feeling and know i'm in for a shit night lol
Age wise i'm 41.
Well, not exactly 'over the hill' then lol!
Reading up on it, it seems the old chestnut "adopt a healthy lifestyle" is the order of the day with regard to prevention, and even to stop existing stones deteriorating. Eating well & keeping reasonably fit- neither of which apply to the in-laws!!