Normal salt begins as a saline solution. After processing and kiln drying at temperatures of 350-400 degrees, its natural state is changed and nearly all trace minerals are lost. Chemicals are then used to bleach the salt, prevent caking, and make it free-flowing. Redmond Salt, on the other hand, is made from rock salt. It has not been in solution for well over 50 million years! Redmond Salt is not kiln dried or processed with chemicals. It is in its truly natural state of pure sodium chloride and minerals your horse's body needs. We like Redmond Salt because it is an unprocessed source of salt and minerals. Many other salt blocks use carriers such as molasses, which may get a horse's minerals out of balance while they are getting their sugar fix. Look at the ingredients before you buy. On the other hand, since Redmond Salt does contain minerals, at times a horse's intake may decrease once their minerals become balanced. If your horse does this offer a white salt source also. If a horse is in heavy work, or if the weather is hot enough that they are sweating just standing, a white salt source without minerals is a good choice even though it is processed. If the weather is this hot in your area, consider adding Ions to the ration.