I have very unpleasantly strong smelling urine, can you help?

There is no infection, I have just been tested but urine smells very strongly of egg/sulphur. There are no other symptoms. Have you ever had the same problem and what did you do? I’m hoping there might be some supplement or food item that will relieve the smell, it is very unpleasant. Totally unconnected with asparagus by the way.