Hello everyone, This is my first post so a little info. I have two BL, brothers nearly 6 yrs old. One of the cats Jose, had crystals when he was 3 mths old and had to have a couple of ops to clear them. Everything was fine until 2008 when he developed UTI and was put on Royal Canin Urinary S/O LP34. Both cats eat this. We were told to feed no more than 80gms per day, but I find that both cats get very hungry. Without going back to vet (if poss) where can I find out how much they should be on and a also can I mix this is a meat version & do 80gs per day split 40g of wet & 40g of dry? I just think that the meat may fill them up a bit - and stop them bringing trophies home... Which tends to stop if I switch to normal meat whilst waiging for delivery (If I've run out).