I use sea salt. Is this healthier for me than table salt?

When following a renal diet you will be asked to limit your salt intake…

Salt is mostly made up of the minerals sodium and chloride. You may see sodium or sodium chloride written on food labels instead of salt.

Limiting your sodium intake…

helps keep blood pressure under control and minimizes swelling in the body (oedema).

Sea salt is made from evaporated sea water…

 with little processing and contains trace amounts of minerals that may give it a different flavour or colour than table salt whereas table salt is mined.

However, sea salt and table salt contain about the same amount of sodium…

Try to avoid adding any salt to your food.
Even without adding salt to your food, you can easily get more than you need by eating foods that have a high salt content. Try to choose fresh foods instead of processed and canned food.