If you take a salt water bath will you lose weight?

Any hot bath, salt or not, will make you lose weight through sweat if you soak in it for 10 minutes ~ because the humidity underwater is 100%.

salt does not improve the procedure, just speeds it up so that you don't spend as long in the tub.

It needs to be stressed that this is not something the average joe should be looking into, the weight lost is waterweight, not fat or muscle, so it is not a permanent loss and your body doesn't function properly when it is missing out on its water. Besides you regain most of the weight as soon as you feel dehydrated and guzzle down a ton of water or take a shower.

Bottom line, this is a method used by athletes who compete in sports with weight-classes to get rid of the last few pounds if they need it, they have professionals watching over them and learn quickly how it effects their performances. If someone who is just slightly overweight decides to start cutting water to feel better about themselves they will soon find themselves cramping up, lacking energy and looking like a dried up tomato.