Regular salt intake is essential for the human body to function properly. As a guideline, the recommended daily allowance in Germany is 6 grams. If you are experiencing pain, due to strong physical activity or illness, for example, symptoms of deficiency can occur. Signs of sodium deficiency include low blood pressure and muscle spasms. This is especially true at very high temperatures and during high intensity sports. This is because we lose a lot of salt while sweating. The level of salinity in our blood and bodily fluids is 0.9%.
As well as the differences in origin and method of extraction (rock salt, evaporated salt, sea salt), there are differences in the minerals, the purity, the grain and the taste, for example.