Celtic sea salt (Sel gris)

Celtic sea salt is an unrefined sea salt sourced from the coastal region of Brittany in France. It is traditionally harvested and is known for its moist texture and light grey color, which it acquires from the clay found in the salt flats of the area.

It is considered less processed than other salts and retains a higher moisture content along with trace minerals like magnesium, calcium, and potassium. Although present in small amounts, these minerals contribute to its distinct taste and are thought to offer health benefits, such as aiding digestion and potentially allowing for a reduced sodium intake due to salt's rich flavor​.

Celtic Sea Salt also has a different mineral profile compared to other popular salts like Himalayan salt. For instance, it generally has less sodium and more calcium compared to Himalayan salt, which contains more potassium and has a pink color due to iron oxide.

The less processed nature and mineral content of Celtic sea salt often leads people to use it in place of other salts to achieve similar flavor enhancement with potentially lower sodium consumption.