Well if you've never had problems before why should you unless your concerned about it. Have you guys actually peed in a cup and smelt it before? Seriously, I've had people come in and say their urine smelled like something and after they peed in a cup it had no smell. What was happening it would smell like something they ate or drink, turned out to be thier on breath. I'm not joking either. But like i said i'm not saying it cant happen I've just never heard of it. Very interesting though. Does it do that also with anything else you drink?