Salt is used in bread to control the yeast development. It is necessary for the baking. It is not in large amounts however.Table salt, Himalayan salt and sea salt are all the same--sodium chloride. The latter two just have more "impurities" in them. The balance of Sodium (outside cell membranes) and Potassium (inside cell membranes) is critical for cellular function. Both are electrolytes. It is a balance, and if you have an excess of Sodium, you will effectively have a shortage of Potassium. Potassium is much, much harder to find in our diet, while Sodium is everywhere in massive quantities. Unless you cook everything you eat, including baking your own bread, and don't add salt, you will likely have an excess of sodium in your body. Look at the labels of foods such as pasta sauces, bread, etc.