Eatingwell.com destroys the myth about sea salt, their story is reviewed by dietitian Emily Lachtrupp, a M.S., RD. Despite being marketed as a healthier salt, sea salt is actually no healthier than table salt. By weight, both salts contain approximately 40% sodium. Nonetheless, sea salt may have less sodium by volume due to its larger crystals than table salt. There are fewer sea salt crystals in a given volume measurement because sea salt crystals are smaller. Table salt has 2,360 milligrams of sodium per teaspoon, whereas sea salt has 2,000 milligrams.
The extra elements found in salts (iodine in table salt and trace minerals in sea salt) can usually be obtained through diet. If your doctor doesn’t recommend a specific salt for your health condition, choose the salt that tastes good to you.
Hence, neither table salt nor sea salt is better or worse than the other, in the context of blood pressure. Sodium is essential for the health of nerves, muscles, and blood pressure. Adults with high blood pressure or underlying kidney or heart conditions should aim for a sodium limit of 1,500 milligrams per day, according to the American Heart Association.