Certain foods are bad too – dairy stuff (cheese in particular) and chocolate.
Funny I asked the Professor of Urology if food products can cause them and his answer was “No not really” although it’s high protein diets that can help cause uric stones, it’s more to with conditions than diet apparently. For me I have a condition called Medullary Sponge Kidney that’s what causes mine. I was advised that it’s not necessarily the amount of water you drink but how often you pee, which is of course hydration, for me he advised I should pass up to 2 litres of urine a day.
I produce the stones almost consent I can often feel them moving through, sometimes a niggle other times pain to make me wince but so far only the one that put me on the floor into pain induced shock but I have the joy of knowing it’ll happen again. I have painkillers in stock from my GP for when I have attacks and ready for the next one, that said I’ve about ran out but it’s been over a year.
He also explained that the size does not always mean they will be more painful rather the shape and how they pass through. Those spiky ones are the ones that make say “Oh deary me that tingles.”