Protein amounts?

Does your protein requirement change as you lose weight?  I have been told I needed 72 gms a day.  This is my 2nd time to have surgery having going through the barix clinic for my surgery.  The last time I tried to have surgery I had to take classes and we were told by a nutritionist that our protein requirements would decrease as we lose the weight.  What should I go with?   Some people have to watch their protein because too much can cause kidney stones.  My husband being one of them.  Thanks,  Sabby