Are dill pickels good for muscle cramps? or is only the vinigar in pickel juice?

Neither: It depends on what kind of muscle cramps you are talking about but vinegar or pickels have not been found to help. If you are on medication that can make you lose potassium, then sometimes eating potassium rich foods can help. But recently, there is more evidence that magnesium might help mucles cramps. (talking about the charlie horses that wake you from sleep).